Home / 1,715.66-2,367.61-929.70

Finding the Fourth Proportional to 1,715.66, 2,367.61 and 929.70

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Solution

The fourth proportional to 1,715.66, 2,367.61 and 929.70 is: 1,282.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.66 : 2,367.61 = 929.70 : x
  2. Step 2: Convert to fraction form
    1,715.66/2,367.61 = 929.70/x
  3. Step 3: Cross multiply
    1,715.66x = 2,367.61 × 929.70
  4. Step 4: Simplify right side
    1,715.66x = 2,201,167.02
  5. Step 5: Solve for x
    x = 2,201,167.02/1,715.66
  6. Step 6: Final answer
    x = 1,282.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.