Home / 3,864,911.40-5,333,475.24-2,145,987.72

Finding the Fourth Proportional to 3,864,911.40, 5,333,475.24 and 2,145,987.72

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Solution

The fourth proportional to 3,864,911.40, 5,333,475.24 and 2,145,987.72 is: 2,961,406.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864,911.40 : 5,333,475.24 = 2,145,987.72 : x
  2. Step 2: Convert to fraction form
    3,864,911.40/5,333,475.24 = 2,145,987.72/x
  3. Step 3: Cross multiply
    3,864,911.40x = 5,333,475.24 × 2,145,987.72
  4. Step 4: Simplify right side
    3,864,911.40x = 11,445,572,369,964.05
  5. Step 5: Solve for x
    x = 11,445,572,369,964.05/3,864,911.40
  6. Step 6: Final answer
    x = 2,961,406.15

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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.