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Finding the Fourth Proportional to 3,125.91, 4,688.93 and 934.72

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Solution

The fourth proportional to 3,125.91, 4,688.93 and 934.72 is: 1,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.91 : 4,688.93 = 934.72 : x
  2. Step 2: Convert to fraction form
    3,125.91/4,688.93 = 934.72/x
  3. Step 3: Cross multiply
    3,125.91x = 4,688.93 × 934.72
  4. Step 4: Simplify right side
    3,125.91x = 4,382,831.98
  5. Step 5: Solve for x
    x = 4,382,831.98/3,125.91
  6. Step 6: Final answer
    x = 1,402.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.