Home / 1,715.16-2,366.92-929.22

Finding the Fourth Proportional to 1,715.16, 2,366.92 and 929.22

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Solution

The fourth proportional to 1,715.16, 2,366.92 and 929.22 is: 1,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.16 : 2,366.92 = 929.22 : x
  2. Step 2: Convert to fraction form
    1,715.16/2,366.92 = 929.22/x
  3. Step 3: Cross multiply
    1,715.16x = 2,366.92 × 929.22
  4. Step 4: Simplify right side
    1,715.16x = 2,199,389.40
  5. Step 5: Solve for x
    x = 2,199,389.40/1,715.16
  6. Step 6: Final answer
    x = 1,282.32

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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.