Home / 5,490.74-8,236.02-1,330.72

Finding the Fourth Proportional to 5,490.74, 8,236.02 and 1,330.72

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Solution

The fourth proportional to 5,490.74, 8,236.02 and 1,330.72 is: 1,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.74 : 8,236.02 = 1,330.72 : x
  2. Step 2: Convert to fraction form
    5,490.74/8,236.02 = 1,330.72/x
  3. Step 3: Cross multiply
    5,490.74x = 8,236.02 × 1,330.72
  4. Step 4: Simplify right side
    5,490.74x = 10,959,836.53
  5. Step 5: Solve for x
    x = 10,959,836.53/5,490.74
  6. Step 6: Final answer
    x = 1,996.06

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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.