Home / 3,440.20-4,747.50-1,948.12

Finding the Fourth Proportional to 3,440.20, 4,747.50 and 1,948.12

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Solution

The fourth proportional to 3,440.20, 4,747.50 and 1,948.12 is: 2,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.20 : 4,747.50 = 1,948.12 : x
  2. Step 2: Convert to fraction form
    3,440.20/4,747.50 = 1,948.12/x
  3. Step 3: Cross multiply
    3,440.20x = 4,747.50 × 1,948.12
  4. Step 4: Simplify right side
    3,440.20x = 9,248,699.70
  5. Step 5: Solve for x
    x = 9,248,699.70/3,440.20
  6. Step 6: Final answer
    x = 2,688.42

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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.