Home / 3,842,039.86-5,302,316.62-2,188,257.20

Finding the Fourth Proportional to 3,842,039.86, 5,302,316.62 and 2,188,257.20

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Solution

The fourth proportional to 3,842,039.86, 5,302,316.62 and 2,188,257.20 is: 3,019,966.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842,039.86 : 5,302,316.62 = 2,188,257.20 : x
  2. Step 2: Convert to fraction form
    3,842,039.86/5,302,316.62 = 2,188,257.20/x
  3. Step 3: Cross multiply
    3,842,039.86x = 5,302,316.62 × 2,188,257.20
  4. Step 4: Simplify right side
    3,842,039.86x = 11,602,832,520,394.67
  5. Step 5: Solve for x
    x = 11,602,832,520,394.67/3,842,039.86
  6. Step 6: Final answer
    x = 3,019,966.72

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Double scale
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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.