Home / 1,648.76-2,275.68-986.02

Finding the Fourth Proportional to 1,648.76, 2,275.68 and 986.02

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Solution

The fourth proportional to 1,648.76, 2,275.68 and 986.02 is: 1,360.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,648.76 : 2,275.68 = 986.02 : x
  2. Step 2: Convert to fraction form
    1,648.76/2,275.68 = 986.02/x
  3. Step 3: Cross multiply
    1,648.76x = 2,275.68 × 986.02
  4. Step 4: Simplify right side
    1,648.76x = 2,243,865.99
  5. Step 5: Solve for x
    x = 2,243,865.99/1,648.76
  6. Step 6: Final answer
    x = 1,360.94

Related Problems

Find fourth proportional to 824.38, 1,137.84 and 493.01
Half scale
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Double scale
Find fourth proportional to 1,649.76, 2,277.06 and 987.02
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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.