Home / 5,459.31-8,190.56-1,761.46

Finding the Fourth Proportional to 5,459.31, 8,190.56 and 1,761.46

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Solution

The fourth proportional to 5,459.31, 8,190.56 and 1,761.46 is: 2,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.31 : 8,190.56 = 1,761.46 : x
  2. Step 2: Convert to fraction form
    5,459.31/8,190.56 = 1,761.46/x
  3. Step 3: Cross multiply
    5,459.31x = 8,190.56 × 1,761.46
  4. Step 4: Simplify right side
    5,459.31x = 14,427,343.82
  5. Step 5: Solve for x
    x = 14,427,343.82/5,459.31
  6. Step 6: Final answer
    x = 2,642.70

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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.