Home / 3,179,381.12-4,385,325.12-2,159,014.40

Finding the Fourth Proportional to 3,179,381.12, 4,385,325.12 and 2,159,014.40

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Solution

The fourth proportional to 3,179,381.12, 4,385,325.12 and 2,159,014.40 is: 2,977,931.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,381.12 : 4,385,325.12 = 2,159,014.40 : x
  2. Step 2: Convert to fraction form
    3,179,381.12/4,385,325.12 = 2,159,014.40/x
  3. Step 3: Cross multiply
    3,179,381.12x = 4,385,325.12 × 2,159,014.40
  4. Step 4: Simplify right side
    3,179,381.12x = 9,467,980,082,761.73
  5. Step 5: Solve for x
    x = 9,467,980,082,761.73/3,179,381.12
  6. Step 6: Final answer
    x = 2,977,931.78

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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.