Home / 1,715.66-2,573.50-1,439.18

Finding the Fourth Proportional to 1,715.66, 2,573.50 and 1,439.18

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Solution

The fourth proportional to 1,715.66, 2,573.50 and 1,439.18 is: 2,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.66 : 2,573.50 = 1,439.18 : x
  2. Step 2: Convert to fraction form
    1,715.66/2,573.50 = 1,439.18/x
  3. Step 3: Cross multiply
    1,715.66x = 2,573.50 × 1,439.18
  4. Step 4: Simplify right side
    1,715.66x = 3,703,729.73
  5. Step 5: Solve for x
    x = 3,703,729.73/1,715.66
  6. Step 6: Final answer
    x = 2,158.78

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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.