Home / 1,417.19-2,125.33-479.95

Finding the Fourth Proportional to 1,417.19, 2,125.33 and 479.95

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Solution

The fourth proportional to 1,417.19, 2,125.33 and 479.95 is: 719.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.19 : 2,125.33 = 479.95 : x
  2. Step 2: Convert to fraction form
    1,417.19/2,125.33 = 479.95/x
  3. Step 3: Cross multiply
    1,417.19x = 2,125.33 × 479.95
  4. Step 4: Simplify right side
    1,417.19x = 1,020,052.13
  5. Step 5: Solve for x
    x = 1,020,052.13/1,417.19
  6. Step 6: Final answer
    x = 719.77

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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.