Home / 7,092.74-10,639.71-2,931.95

Finding the Fourth Proportional to 7,092.74, 10,639.71 and 2,931.95

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Solution

The fourth proportional to 7,092.74, 10,639.71 and 2,931.95 is: 4,398.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092.74 : 10,639.71 = 2,931.95 : x
  2. Step 2: Convert to fraction form
    7,092.74/10,639.71 = 2,931.95/x
  3. Step 3: Cross multiply
    7,092.74x = 10,639.71 × 2,931.95
  4. Step 4: Simplify right side
    7,092.74x = 31,195,044.54
  5. Step 5: Solve for x
    x = 31,195,044.54/7,092.74
  6. Step 6: Final answer
    x = 4,398.17

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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.