Home / 3,840,169.40-5,299,331.10-2,121,252.92

Finding the Fourth Proportional to 3,840,169.40, 5,299,331.10 and 2,121,252.92

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Solution

The fourth proportional to 3,840,169.40, 5,299,331.10 and 2,121,252.92 is: 2,927,272.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840,169.40 : 5,299,331.10 = 2,121,252.92 : x
  2. Step 2: Convert to fraction form
    3,840,169.40/5,299,331.10 = 2,121,252.92/x
  3. Step 3: Cross multiply
    3,840,169.40x = 5,299,331.10 × 2,121,252.92
  4. Step 4: Simplify right side
    3,840,169.40x = 11,241,221,569,921.81
  5. Step 5: Solve for x
    x = 11,241,221,569,921.81/3,840,169.40
  6. Step 6: Final answer
    x = 2,927,272.32

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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.