Home / 1,479.11-2,214.95-929.52

Finding the Fourth Proportional to 1,479.11, 2,214.95 and 929.52

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Solution

The fourth proportional to 1,479.11, 2,214.95 and 929.52 is: 1,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.11 : 2,214.95 = 929.52 : x
  2. Step 2: Convert to fraction form
    1,479.11/2,214.95 = 929.52/x
  3. Step 3: Cross multiply
    1,479.11x = 2,214.95 × 929.52
  4. Step 4: Simplify right side
    1,479.11x = 2,058,835.68
  5. Step 5: Solve for x
    x = 2,058,835.68/1,479.11
  6. Step 6: Final answer
    x = 1,391.95

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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.