Home / 5,615.04-8,423.52-3,148.80

Finding the Fourth Proportional to 5,615.04, 8,423.52 and 3,148.80

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Solution

The fourth proportional to 5,615.04, 8,423.52 and 3,148.80 is: 4,723.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.04 : 8,423.52 = 3,148.80 : x
  2. Step 2: Convert to fraction form
    5,615.04/8,423.52 = 3,148.80/x
  3. Step 3: Cross multiply
    5,615.04x = 8,423.52 × 3,148.80
  4. Step 4: Simplify right side
    5,615.04x = 26,523,979.78
  5. Step 5: Solve for x
    x = 26,523,979.78/5,615.04
  6. Step 6: Final answer
    x = 4,723.74

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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.