Home / 5,209.01-7,188.45-2,851.15

Finding the Fourth Proportional to 5,209.01, 7,188.45 and 2,851.15

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Solution

The fourth proportional to 5,209.01, 7,188.45 and 2,851.15 is: 3,934.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.01 : 7,188.45 = 2,851.15 : x
  2. Step 2: Convert to fraction form
    5,209.01/7,188.45 = 2,851.15/x
  3. Step 3: Cross multiply
    5,209.01x = 7,188.45 × 2,851.15
  4. Step 4: Simplify right side
    5,209.01x = 20,495,334.03
  5. Step 5: Solve for x
    x = 20,495,334.03/5,209.01
  6. Step 6: Final answer
    x = 3,934.59

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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.