Home / 2,102,461.29-3,149,111.34-1,381,989.68

Finding the Fourth Proportional to 2,102,461.29, 3,149,111.34 and 1,381,989.68

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Solution

The fourth proportional to 2,102,461.29, 3,149,111.34 and 1,381,989.68 is: 2,069,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102,461.29 : 3,149,111.34 = 1,381,989.68 : x
  2. Step 2: Convert to fraction form
    2,102,461.29/3,149,111.34 = 1,381,989.68/x
  3. Step 3: Cross multiply
    2,102,461.29x = 3,149,111.34 × 1,381,989.68
  4. Step 4: Simplify right side
    2,102,461.29x = 4,352,039,364,144.55
  5. Step 5: Solve for x
    x = 4,352,039,364,144.55/2,102,461.29
  6. Step 6: Final answer
    x = 2,069,973.60

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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.