Home / 3,440.60-4,748.13-1,948.49

Finding the Fourth Proportional to 3,440.60, 4,748.13 and 1,948.49

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Solution

The fourth proportional to 3,440.60, 4,748.13 and 1,948.49 is: 2,688.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.60 : 4,748.13 = 1,948.49 : x
  2. Step 2: Convert to fraction form
    3,440.60/4,748.13 = 1,948.49/x
  3. Step 3: Cross multiply
    3,440.60x = 4,748.13 × 1,948.49
  4. Step 4: Simplify right side
    3,440.60x = 9,251,683.82
  5. Step 5: Solve for x
    x = 9,251,683.82/3,440.60
  6. Step 6: Final answer
    x = 2,688.97

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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.