Home / 1,452.10-2,178.16-356.47

Finding the Fourth Proportional to 1,452.10, 2,178.16 and 356.47

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Solution

The fourth proportional to 1,452.10, 2,178.16 and 356.47 is: 534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.10 : 2,178.16 = 356.47 : x
  2. Step 2: Convert to fraction form
    1,452.10/2,178.16 = 356.47/x
  3. Step 3: Cross multiply
    1,452.10x = 2,178.16 × 356.47
  4. Step 4: Simplify right side
    1,452.10x = 776,436.02
  5. Step 5: Solve for x
    x = 776,436.02/1,452.10
  6. Step 6: Final answer
    x = 534.70

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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.