Home / 3,721,851.45-5,137,268.81-2,173,530.78

Finding the Fourth Proportional to 3,721,851.45, 5,137,268.81 and 2,173,530.78

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Solution

The fourth proportional to 3,721,851.45, 5,137,268.81 and 2,173,530.78 is: 3,000,122.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721,851.45 : 5,137,268.81 = 2,173,530.78 : x
  2. Step 2: Convert to fraction form
    3,721,851.45/5,137,268.81 = 2,173,530.78/x
  3. Step 3: Cross multiply
    3,721,851.45x = 5,137,268.81 × 2,173,530.78
  4. Step 4: Simplify right side
    3,721,851.45x = 11,166,011,872,801.32
  5. Step 5: Solve for x
    x = 11,166,011,872,801.32/3,721,851.45
  6. Step 6: Final answer
    x = 3,000,122.93

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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.