Home / 3,830.40-5,279.04-2,711.52

Finding the Fourth Proportional to 3,830.40, 5,279.04 and 2,711.52

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Solution

The fourth proportional to 3,830.40, 5,279.04 and 2,711.52 is: 3,737.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.40 : 5,279.04 = 2,711.52 : x
  2. Step 2: Convert to fraction form
    3,830.40/5,279.04 = 2,711.52/x
  3. Step 3: Cross multiply
    3,830.40x = 5,279.04 × 2,711.52
  4. Step 4: Simplify right side
    3,830.40x = 14,314,222.54
  5. Step 5: Solve for x
    x = 14,314,222.54/3,830.40
  6. Step 6: Final answer
    x = 3,737.00

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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.