Home / 1,541.64-2,312.46-387.42

Finding the Fourth Proportional to 1,541.64, 2,312.46 and 387.42

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Solution

The fourth proportional to 1,541.64, 2,312.46 and 387.42 is: 581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.64 : 2,312.46 = 387.42 : x
  2. Step 2: Convert to fraction form
    1,541.64/2,312.46 = 387.42/x
  3. Step 3: Cross multiply
    1,541.64x = 2,312.46 × 387.42
  4. Step 4: Simplify right side
    1,541.64x = 895,893.25
  5. Step 5: Solve for x
    x = 895,893.25/1,541.64
  6. Step 6: Final answer
    x = 581.13

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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.