Home / 2,861,512.12-3,948,885.80-1,572,435.55

Finding the Fourth Proportional to 2,861,512.12, 3,948,885.80 and 1,572,435.55

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Solution

The fourth proportional to 2,861,512.12, 3,948,885.80 and 1,572,435.55 is: 2,169,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861,512.12 : 3,948,885.80 = 1,572,435.55 : x
  2. Step 2: Convert to fraction form
    2,861,512.12/3,948,885.80 = 1,572,435.55/x
  3. Step 3: Cross multiply
    2,861,512.12x = 3,948,885.80 × 1,572,435.55
  4. Step 4: Simplify right side
    2,861,512.12x = 6,209,368,414,810.19
  5. Step 5: Solve for x
    x = 6,209,368,414,810.19/2,861,512.12
  6. Step 6: Final answer
    x = 2,169,960.55

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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.