Home / 3,940,031.40-5,438,088.66-2,488,803.72

Finding the Fourth Proportional to 3,940,031.40, 5,438,088.66 and 2,488,803.72

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Solution

The fourth proportional to 3,940,031.40, 5,438,088.66 and 2,488,803.72 is: 3,435,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,031.40 : 5,438,088.66 = 2,488,803.72 : x
  2. Step 2: Convert to fraction form
    3,940,031.40/5,438,088.66 = 2,488,803.72/x
  3. Step 3: Cross multiply
    3,940,031.40x = 5,438,088.66 × 2,488,803.72
  4. Step 4: Simplify right side
    3,940,031.40x = 13,534,335,286,697.82
  5. Step 5: Solve for x
    x = 13,534,335,286,697.82/3,940,031.40
  6. Step 6: Final answer
    x = 3,435,083.10

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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.