Home / 5,543.60-8,315.40-5,422.10

Finding the Fourth Proportional to 5,543.60, 8,315.40 and 5,422.10

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Solution

The fourth proportional to 5,543.60, 8,315.40 and 5,422.10 is: 8,133.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,543.60 : 8,315.40 = 5,422.10 : x
  2. Step 2: Convert to fraction form
    5,543.60/8,315.40 = 5,422.10/x
  3. Step 3: Cross multiply
    5,543.60x = 8,315.40 × 5,422.10
  4. Step 4: Simplify right side
    5,543.60x = 45,086,930.34
  5. Step 5: Solve for x
    x = 45,086,930.34/5,543.60
  6. Step 6: Final answer
    x = 8,133.15

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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.