Home / 3,942,281.60-5,440,344-2,131,441.28

Finding the Fourth Proportional to 3,942,281.60, 5,440,344 and 2,131,441.28

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Solution

The fourth proportional to 3,942,281.60, 5,440,344 and 2,131,441.28 is: 2,941,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942,281.60 : 5,440,344 = 2,131,441.28 : x
  2. Step 2: Convert to fraction form
    3,942,281.60/5,440,344 = 2,131,441.28/x
  3. Step 3: Cross multiply
    3,942,281.60x = 5,440,344 × 2,131,441.28
  4. Step 4: Simplify right side
    3,942,281.60x = 11,595,773,779,000.32
  5. Step 5: Solve for x
    x = 11,595,773,779,000.32/3,942,281.60
  6. Step 6: Final answer
    x = 2,941,386.48

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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.