Home / 5,122.90-7,069.68-3,133.04

Finding the Fourth Proportional to 5,122.90, 7,069.68 and 3,133.04

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Solution

The fourth proportional to 5,122.90, 7,069.68 and 3,133.04 is: 4,323.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.90 : 7,069.68 = 3,133.04 : x
  2. Step 2: Convert to fraction form
    5,122.90/7,069.68 = 3,133.04/x
  3. Step 3: Cross multiply
    5,122.90x = 7,069.68 × 3,133.04
  4. Step 4: Simplify right side
    5,122.90x = 22,149,590.23
  5. Step 5: Solve for x
    x = 22,149,590.23/5,122.90
  6. Step 6: Final answer
    x = 4,323.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.