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Finding the Fourth Proportional to 927.03, 1,277.73 and 787.53

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Solution

The fourth proportional to 927.03, 1,277.73 and 787.53 is: 1,085.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    927.03 : 1,277.73 = 787.53 : x
  2. Step 2: Convert to fraction form
    927.03/1,277.73 = 787.53/x
  3. Step 3: Cross multiply
    927.03x = 1,277.73 × 787.53
  4. Step 4: Simplify right side
    927.03x = 1,006,250.71
  5. Step 5: Solve for x
    x = 1,006,250.71/927.03
  6. Step 6: Final answer
    x = 1,085.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.