Home / 2,689,221.64-3,711,309.42-1,643,090.74

Finding the Fourth Proportional to 2,689,221.64, 3,711,309.42 and 1,643,090.74

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Solution

The fourth proportional to 2,689,221.64, 3,711,309.42 and 1,643,090.74 is: 2,267,577.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689,221.64 : 3,711,309.42 = 1,643,090.74 : x
  2. Step 2: Convert to fraction form
    2,689,221.64/3,711,309.42 = 1,643,090.74/x
  3. Step 3: Cross multiply
    2,689,221.64x = 3,711,309.42 × 1,643,090.74
  4. Step 4: Simplify right side
    2,689,221.64x = 6,098,018,141,276.77
  5. Step 5: Solve for x
    x = 6,098,018,141,276.77/2,689,221.64
  6. Step 6: Final answer
    x = 2,267,577.37

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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.