Home / 1,589.12-2,384.16-615.28

Finding the Fourth Proportional to 1,589.12, 2,384.16 and 615.28

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Solution

The fourth proportional to 1,589.12, 2,384.16 and 615.28 is: 923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.12 : 2,384.16 = 615.28 : x
  2. Step 2: Convert to fraction form
    1,589.12/2,384.16 = 615.28/x
  3. Step 3: Cross multiply
    1,589.12x = 2,384.16 × 615.28
  4. Step 4: Simplify right side
    1,589.12x = 1,466,925.96
  5. Step 5: Solve for x
    x = 1,466,925.96/1,589.12
  6. Step 6: Final answer
    x = 923.11

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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.