Home / 3,374.72-4,647.84-3,115.52

Finding the Fourth Proportional to 3,374.72, 4,647.84 and 3,115.52

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Solution

The fourth proportional to 3,374.72, 4,647.84 and 3,115.52 is: 4,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,374.72 : 4,647.84 = 3,115.52 : x
  2. Step 2: Convert to fraction form
    3,374.72/4,647.84 = 3,115.52/x
  3. Step 3: Cross multiply
    3,374.72x = 4,647.84 × 3,115.52
  4. Step 4: Simplify right side
    3,374.72x = 14,480,438.48
  5. Step 5: Solve for x
    x = 14,480,438.48/3,374.72
  6. Step 6: Final answer
    x = 4,290.86

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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.