Home / 5,630.40-8,434.80-3,432.60

Finding the Fourth Proportional to 5,630.40, 8,434.80 and 3,432.60

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Solution

The fourth proportional to 5,630.40, 8,434.80 and 3,432.60 is: 5,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.40 : 8,434.80 = 3,432.60 : x
  2. Step 2: Convert to fraction form
    5,630.40/8,434.80 = 3,432.60/x
  3. Step 3: Cross multiply
    5,630.40x = 8,434.80 × 3,432.60
  4. Step 4: Simplify right side
    5,630.40x = 28,953,294.48
  5. Step 5: Solve for x
    x = 28,953,294.48/5,630.40
  6. Step 6: Final answer
    x = 5,142.32

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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.