Home / 2,187,059.75-3,018,142.50-1,281,641.75

Finding the Fourth Proportional to 2,187,059.75, 3,018,142.50 and 1,281,641.75

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Solution

The fourth proportional to 2,187,059.75, 3,018,142.50 and 1,281,641.75 is: 1,768,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,059.75 : 3,018,142.50 = 1,281,641.75 : x
  2. Step 2: Convert to fraction form
    2,187,059.75/3,018,142.50 = 1,281,641.75/x
  3. Step 3: Cross multiply
    2,187,059.75x = 3,018,142.50 × 1,281,641.75
  4. Step 4: Simplify right side
    2,187,059.75x = 3,868,177,435,449.38
  5. Step 5: Solve for x
    x = 3,868,177,435,449.38/2,187,059.75
  6. Step 6: Final answer
    x = 1,768,665.64

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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.