Home / 2,187,014.10-3,282,161.40-1,121,507.70

Finding the Fourth Proportional to 2,187,014.10, 3,282,161.40 and 1,121,507.70

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Solution

The fourth proportional to 2,187,014.10, 3,282,161.40 and 1,121,507.70 is: 1,683,102.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,014.10 : 3,282,161.40 = 1,121,507.70 : x
  2. Step 2: Convert to fraction form
    2,187,014.10/3,282,161.40 = 1,121,507.70/x
  3. Step 3: Cross multiply
    2,187,014.10x = 3,282,161.40 × 1,121,507.70
  4. Step 4: Simplify right side
    2,187,014.10x = 3,680,969,282,742.78
  5. Step 5: Solve for x
    x = 3,680,969,282,742.78/2,187,014.10
  6. Step 6: Final answer
    x = 1,683,102.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.