Home / 1,330.08-1,833.12-1,082.22

Finding the Fourth Proportional to 1,330.08, 1,833.12 and 1,082.22

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Solution

The fourth proportional to 1,330.08, 1,833.12 and 1,082.22 is: 1,491.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.08 : 1,833.12 = 1,082.22 : x
  2. Step 2: Convert to fraction form
    1,330.08/1,833.12 = 1,082.22/x
  3. Step 3: Cross multiply
    1,330.08x = 1,833.12 × 1,082.22
  4. Step 4: Simplify right side
    1,330.08x = 1,983,839.13
  5. Step 5: Solve for x
    x = 1,983,839.13/1,330.08
  6. Step 6: Final answer
    x = 1,491.52

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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.