Home / 1,527.83-2,291.75-787.29

Finding the Fourth Proportional to 1,527.83, 2,291.75 and 787.29

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Solution

The fourth proportional to 1,527.83, 2,291.75 and 787.29 is: 1,180.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,527.83 : 2,291.75 = 787.29 : x
  2. Step 2: Convert to fraction form
    1,527.83/2,291.75 = 787.29/x
  3. Step 3: Cross multiply
    1,527.83x = 2,291.75 × 787.29
  4. Step 4: Simplify right side
    1,527.83x = 1,804,267.92
  5. Step 5: Solve for x
    x = 1,804,267.92/1,527.83
  6. Step 6: Final answer
    x = 1,180.94

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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.