Home / 1,715.18-2,366.96-929.23

Finding the Fourth Proportional to 1,715.18, 2,366.96 and 929.23

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Solution

The fourth proportional to 1,715.18, 2,366.96 and 929.23 is: 1,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.18 : 2,366.96 = 929.23 : x
  2. Step 2: Convert to fraction form
    1,715.18/2,366.96 = 929.23/x
  3. Step 3: Cross multiply
    1,715.18x = 2,366.96 × 929.23
  4. Step 4: Simplify right side
    1,715.18x = 2,199,443.16
  5. Step 5: Solve for x
    x = 2,199,443.16/1,715.18
  6. Step 6: Final answer
    x = 1,282.34

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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.