Home / 1,437.02-2,155.23-410.78

Finding the Fourth Proportional to 1,437.02, 2,155.23 and 410.78

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Solution

The fourth proportional to 1,437.02, 2,155.23 and 410.78 is: 616.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.02 : 2,155.23 = 410.78 : x
  2. Step 2: Convert to fraction form
    1,437.02/2,155.23 = 410.78/x
  3. Step 3: Cross multiply
    1,437.02x = 2,155.23 × 410.78
  4. Step 4: Simplify right side
    1,437.02x = 885,325.38
  5. Step 5: Solve for x
    x = 885,325.38/1,437.02
  6. Step 6: Final answer
    x = 616.08

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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.