Home / 5,630.26-8,436.16-3,978.74

Finding the Fourth Proportional to 5,630.26, 8,436.16 and 3,978.74

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Solution

The fourth proportional to 5,630.26, 8,436.16 and 3,978.74 is: 5,961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.26 : 8,436.16 = 3,978.74 : x
  2. Step 2: Convert to fraction form
    5,630.26/8,436.16 = 3,978.74/x
  3. Step 3: Cross multiply
    5,630.26x = 8,436.16 × 3,978.74
  4. Step 4: Simplify right side
    5,630.26x = 33,565,287.24
  5. Step 5: Solve for x
    x = 33,565,287.24/5,630.26
  6. Step 6: Final answer
    x = 5,961.59

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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.