Home / 4,995.42-7,478.64-2,909.04

Finding the Fourth Proportional to 4,995.42, 7,478.64 and 2,909.04

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Solution

The fourth proportional to 4,995.42, 7,478.64 and 2,909.04 is: 4,355.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,995.42 : 7,478.64 = 2,909.04 : x
  2. Step 2: Convert to fraction form
    4,995.42/7,478.64 = 2,909.04/x
  3. Step 3: Cross multiply
    4,995.42x = 7,478.64 × 2,909.04
  4. Step 4: Simplify right side
    4,995.42x = 21,755,662.91
  5. Step 5: Solve for x
    x = 21,755,662.91/4,995.42
  6. Step 6: Final answer
    x = 4,355.12

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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.