Home / 4,909.35-7,349.56-3,240.40

Finding the Fourth Proportional to 4,909.35, 7,349.56 and 3,240.40

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Solution

The fourth proportional to 4,909.35, 7,349.56 and 3,240.40 is: 4,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.35 : 7,349.56 = 3,240.40 : x
  2. Step 2: Convert to fraction form
    4,909.35/7,349.56 = 3,240.40/x
  3. Step 3: Cross multiply
    4,909.35x = 7,349.56 × 3,240.40
  4. Step 4: Simplify right side
    4,909.35x = 23,815,487.75
  5. Step 5: Solve for x
    x = 23,815,487.75/4,909.35
  6. Step 6: Final answer
    x = 4,851.05

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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.