Home / 1,330.20-1,995.24-356.28

Finding the Fourth Proportional to 1,330.20, 1,995.24 and 356.28

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Solution

The fourth proportional to 1,330.20, 1,995.24 and 356.28 is: 534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.20 : 1,995.24 = 356.28 : x
  2. Step 2: Convert to fraction form
    1,330.20/1,995.24 = 356.28/x
  3. Step 3: Cross multiply
    1,330.20x = 1,995.24 × 356.28
  4. Step 4: Simplify right side
    1,330.20x = 710,864.11
  5. Step 5: Solve for x
    x = 710,864.11/1,330.20
  6. Step 6: Final answer
    x = 534.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.