Home / 3,557.45-4,909.40-2,065.28

Finding the Fourth Proportional to 3,557.45, 4,909.40 and 2,065.28

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Solution

The fourth proportional to 3,557.45, 4,909.40 and 2,065.28 is: 2,850.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.45 : 4,909.40 = 2,065.28 : x
  2. Step 2: Convert to fraction form
    3,557.45/4,909.40 = 2,065.28/x
  3. Step 3: Cross multiply
    3,557.45x = 4,909.40 × 2,065.28
  4. Step 4: Simplify right side
    3,557.45x = 10,139,250.76
  5. Step 5: Solve for x
    x = 10,139,250.76/3,557.45
  6. Step 6: Final answer
    x = 2,850.15

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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.