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Finding the Fourth Proportional to 925.84, 1,277.58 and 571.66

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Solution

The fourth proportional to 925.84, 1,277.58 and 571.66 is: 788.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.84 : 1,277.58 = 571.66 : x
  2. Step 2: Convert to fraction form
    925.84/1,277.58 = 571.66/x
  3. Step 3: Cross multiply
    925.84x = 1,277.58 × 571.66
  4. Step 4: Simplify right side
    925.84x = 730,341.38
  5. Step 5: Solve for x
    x = 730,341.38/925.84
  6. Step 6: Final answer
    x = 788.84

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Double scale
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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.