Home / 3,872,856.18-5,344,132.05-2,153,698.74

Finding the Fourth Proportional to 3,872,856.18, 5,344,132.05 and 2,153,698.74

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Solution

The fourth proportional to 3,872,856.18, 5,344,132.05 and 2,153,698.74 is: 2,971,876.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872,856.18 : 5,344,132.05 = 2,153,698.74 : x
  2. Step 2: Convert to fraction form
    3,872,856.18/5,344,132.05 = 2,153,698.74/x
  3. Step 3: Cross multiply
    3,872,856.18x = 5,344,132.05 × 2,153,698.74
  4. Step 4: Simplify right side
    3,872,856.18x = 11,509,650,462,478.62
  5. Step 5: Solve for x
    x = 11,509,650,462,478.62/3,872,856.18
  6. Step 6: Final answer
    x = 2,971,876.55

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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.