Home / 1,715.57-2,367.49-929.62

Finding the Fourth Proportional to 1,715.57, 2,367.49 and 929.62

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Solution

The fourth proportional to 1,715.57, 2,367.49 and 929.62 is: 1,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.57 : 2,367.49 = 929.62 : x
  2. Step 2: Convert to fraction form
    1,715.57/2,367.49 = 929.62/x
  3. Step 3: Cross multiply
    1,715.57x = 2,367.49 × 929.62
  4. Step 4: Simplify right side
    1,715.57x = 2,200,854.22
  5. Step 5: Solve for x
    x = 2,200,854.22/1,715.57
  6. Step 6: Final answer
    x = 1,282.87

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1.5x scale

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.