Home / 3,438.15-4,744.65-1,866.25

Finding the Fourth Proportional to 3,438.15, 4,744.65 and 1,866.25

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Solution

The fourth proportional to 3,438.15, 4,744.65 and 1,866.25 is: 2,575.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.15 : 4,744.65 = 1,866.25 : x
  2. Step 2: Convert to fraction form
    3,438.15/4,744.65 = 1,866.25/x
  3. Step 3: Cross multiply
    3,438.15x = 4,744.65 × 1,866.25
  4. Step 4: Simplify right side
    3,438.15x = 8,854,691.20
  5. Step 5: Solve for x
    x = 8,854,691.20/3,438.15
  6. Step 6: Final answer
    x = 2,575.42

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1.5x scale

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.