Home / 2,752.23-4,128.57-998.28

Finding the Fourth Proportional to 2,752.23, 4,128.57 and 998.28

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Solution

The fourth proportional to 2,752.23, 4,128.57 and 998.28 is: 1,497.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.23 : 4,128.57 = 998.28 : x
  2. Step 2: Convert to fraction form
    2,752.23/4,128.57 = 998.28/x
  3. Step 3: Cross multiply
    2,752.23x = 4,128.57 × 998.28
  4. Step 4: Simplify right side
    2,752.23x = 4,121,468.86
  5. Step 5: Solve for x
    x = 4,121,468.86/2,752.23
  6. Step 6: Final answer
    x = 1,497.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,753.23, 4,130.07 and 999.28
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.