Home / 5,132.80-7,082.85-2,894.59

Finding the Fourth Proportional to 5,132.80, 7,082.85 and 2,894.59

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Solution

The fourth proportional to 5,132.80, 7,082.85 and 2,894.59 is: 3,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.80 : 7,082.85 = 2,894.59 : x
  2. Step 2: Convert to fraction form
    5,132.80/7,082.85 = 2,894.59/x
  3. Step 3: Cross multiply
    5,132.80x = 7,082.85 × 2,894.59
  4. Step 4: Simplify right side
    5,132.80x = 20,501,946.78
  5. Step 5: Solve for x
    x = 20,501,946.78/5,132.80
  6. Step 6: Final answer
    x = 3,994.30

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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.