Home / 1,750.76-2,416.36-1,121.10

Finding the Fourth Proportional to 1,750.76, 2,416.36 and 1,121.10

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Solution

The fourth proportional to 1,750.76, 2,416.36 and 1,121.10 is: 1,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.76 : 2,416.36 = 1,121.10 : x
  2. Step 2: Convert to fraction form
    1,750.76/2,416.36 = 1,121.10/x
  3. Step 3: Cross multiply
    1,750.76x = 2,416.36 × 1,121.10
  4. Step 4: Simplify right side
    1,750.76x = 2,708,981.20
  5. Step 5: Solve for x
    x = 2,708,981.20/1,750.76
  6. Step 6: Final answer
    x = 1,547.32

Related Problems

Find fourth proportional to 875.38, 1,208.18 and 560.55
Half scale
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Double scale
Find fourth proportional to 1,751.76, 2,417.74 and 1,122.10
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.