Home / 3,151.47-4,720.02-1,509.18

Finding the Fourth Proportional to 3,151.47, 4,720.02 and 1,509.18

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Solution

The fourth proportional to 3,151.47, 4,720.02 and 1,509.18 is: 2,260.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.47 : 4,720.02 = 1,509.18 : x
  2. Step 2: Convert to fraction form
    3,151.47/4,720.02 = 1,509.18/x
  3. Step 3: Cross multiply
    3,151.47x = 4,720.02 × 1,509.18
  4. Step 4: Simplify right side
    3,151.47x = 7,123,336.42
  5. Step 5: Solve for x
    x = 7,123,336.42/3,151.47
  6. Step 6: Final answer
    x = 2,260.32

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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.