Home / 3,870,641.28-5,341,667.27-2,151,790.50

Finding the Fourth Proportional to 3,870,641.28, 5,341,667.27 and 2,151,790.50

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Solution

The fourth proportional to 3,870,641.28, 5,341,667.27 and 2,151,790.50 is: 2,969,572.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,641.28 : 5,341,667.27 = 2,151,790.50 : x
  2. Step 2: Convert to fraction form
    3,870,641.28/5,341,667.27 = 2,151,790.50/x
  3. Step 3: Cross multiply
    3,870,641.28x = 5,341,667.27 × 2,151,790.50
  4. Step 4: Simplify right side
    3,870,641.28x = 11,494,148,874,987.98
  5. Step 5: Solve for x
    x = 11,494,148,874,987.98/3,870,641.28
  6. Step 6: Final answer
    x = 2,969,572.23

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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.