Home / 2,989,421.40-4,484,132.10-2,091,876.60

Finding the Fourth Proportional to 2,989,421.40, 4,484,132.10 and 2,091,876.60

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Solution

The fourth proportional to 2,989,421.40, 4,484,132.10 and 2,091,876.60 is: 3,137,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,421.40 : 4,484,132.10 = 2,091,876.60 : x
  2. Step 2: Convert to fraction form
    2,989,421.40/4,484,132.10 = 2,091,876.60/x
  3. Step 3: Cross multiply
    2,989,421.40x = 4,484,132.10 × 2,091,876.60
  4. Step 4: Simplify right side
    2,989,421.40x = 9,380,251,011,298.86
  5. Step 5: Solve for x
    x = 9,380,251,011,298.86/2,989,421.40
  6. Step 6: Final answer
    x = 3,137,814.90

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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.