Home / 4,239.20-6,358.80-4,001.60

Finding the Fourth Proportional to 4,239.20, 6,358.80 and 4,001.60

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Solution

The fourth proportional to 4,239.20, 6,358.80 and 4,001.60 is: 6,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.20 : 6,358.80 = 4,001.60 : x
  2. Step 2: Convert to fraction form
    4,239.20/6,358.80 = 4,001.60/x
  3. Step 3: Cross multiply
    4,239.20x = 6,358.80 × 4,001.60
  4. Step 4: Simplify right side
    4,239.20x = 25,445,374.08
  5. Step 5: Solve for x
    x = 25,445,374.08/4,239.20
  6. Step 6: Final answer
    x = 6,002.40

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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.