Home / 1,715.90-2,367.95-929.96

Finding the Fourth Proportional to 1,715.90, 2,367.95 and 929.96

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Solution

The fourth proportional to 1,715.90, 2,367.95 and 929.96 is: 1,283.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.90 : 2,367.95 = 929.96 : x
  2. Step 2: Convert to fraction form
    1,715.90/2,367.95 = 929.96/x
  3. Step 3: Cross multiply
    1,715.90x = 2,367.95 × 929.96
  4. Step 4: Simplify right side
    1,715.90x = 2,202,082.29
  5. Step 5: Solve for x
    x = 2,202,082.29/1,715.90
  6. Step 6: Final answer
    x = 1,283.34

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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.