Home / 3,899,155.81-5,380,420.76-2,156,548.29

Finding the Fourth Proportional to 3,899,155.81, 5,380,420.76 and 2,156,548.29

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Solution

The fourth proportional to 3,899,155.81, 5,380,420.76 and 2,156,548.29 is: 2,975,807.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,155.81 : 5,380,420.76 = 2,156,548.29 : x
  2. Step 2: Convert to fraction form
    3,899,155.81/5,380,420.76 = 2,156,548.29/x
  3. Step 3: Cross multiply
    3,899,155.81x = 5,380,420.76 × 2,156,548.29
  4. Step 4: Simplify right side
    3,899,155.81x = 11,603,137,189,458.50
  5. Step 5: Solve for x
    x = 11,603,137,189,458.50/3,899,155.81
  6. Step 6: Final answer
    x = 2,975,807.53

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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.