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Finding the Fourth Proportional to 1,625.31, 2,436.51 and 585.07

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Solution

The fourth proportional to 1,625.31, 2,436.51 and 585.07 is: 877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.31 : 2,436.51 = 585.07 : x
  2. Step 2: Convert to fraction form
    1,625.31/2,436.51 = 585.07/x
  3. Step 3: Cross multiply
    1,625.31x = 2,436.51 × 585.07
  4. Step 4: Simplify right side
    1,625.31x = 1,425,528.91
  5. Step 5: Solve for x
    x = 1,425,528.91/1,625.31
  6. Step 6: Final answer
    x = 877.08

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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.