Home / 1,585.05-2,376.77-763.31

Finding the Fourth Proportional to 1,585.05, 2,376.77 and 763.31

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Solution

The fourth proportional to 1,585.05, 2,376.77 and 763.31 is: 1,144.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.05 : 2,376.77 = 763.31 : x
  2. Step 2: Convert to fraction form
    1,585.05/2,376.77 = 763.31/x
  3. Step 3: Cross multiply
    1,585.05x = 2,376.77 × 763.31
  4. Step 4: Simplify right side
    1,585.05x = 1,814,196.61
  5. Step 5: Solve for x
    x = 1,814,196.61/1,585.05
  6. Step 6: Final answer
    x = 1,144.57

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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.