Home / 1,480.02-2,220.28-614.40

Finding the Fourth Proportional to 1,480.02, 2,220.28 and 614.40

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Solution

The fourth proportional to 1,480.02, 2,220.28 and 614.40 is: 921.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.02 : 2,220.28 = 614.40 : x
  2. Step 2: Convert to fraction form
    1,480.02/2,220.28 = 614.40/x
  3. Step 3: Cross multiply
    1,480.02x = 2,220.28 × 614.40
  4. Step 4: Simplify right side
    1,480.02x = 1,364,140.03
  5. Step 5: Solve for x
    x = 1,364,140.03/1,480.02
  6. Step 6: Final answer
    x = 921.70

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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.