Home / 5,531.42-8,315.36-5,125.62

Finding the Fourth Proportional to 5,531.42, 8,315.36 and 5,125.62

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Solution

The fourth proportional to 5,531.42, 8,315.36 and 5,125.62 is: 7,705.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.42 : 8,315.36 = 5,125.62 : x
  2. Step 2: Convert to fraction form
    5,531.42/8,315.36 = 5,125.62/x
  3. Step 3: Cross multiply
    5,531.42x = 8,315.36 × 5,125.62
  4. Step 4: Simplify right side
    5,531.42x = 42,621,375.52
  5. Step 5: Solve for x
    x = 42,621,375.52/5,531.42
  6. Step 6: Final answer
    x = 7,705.32

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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.