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Finding the Fourth Proportional to 2,438.02, 3,657.04 and 1,948.78

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Solution

The fourth proportional to 2,438.02, 3,657.04 and 1,948.78 is: 2,923.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.02 : 3,657.04 = 1,948.78 : x
  2. Step 2: Convert to fraction form
    2,438.02/3,657.04 = 1,948.78/x
  3. Step 3: Cross multiply
    2,438.02x = 3,657.04 × 1,948.78
  4. Step 4: Simplify right side
    2,438.02x = 7,126,766.41
  5. Step 5: Solve for x
    x = 7,126,766.41/2,438.02
  6. Step 6: Final answer
    x = 2,923.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.