Home / 3,575.60-5,350.80-3,118.40

Finding the Fourth Proportional to 3,575.60, 5,350.80 and 3,118.40

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Solution

The fourth proportional to 3,575.60, 5,350.80 and 3,118.40 is: 4,666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,575.60 : 5,350.80 = 3,118.40 : x
  2. Step 2: Convert to fraction form
    3,575.60/5,350.80 = 3,118.40/x
  3. Step 3: Cross multiply
    3,575.60x = 5,350.80 × 3,118.40
  4. Step 4: Simplify right side
    3,575.60x = 16,685,934.72
  5. Step 5: Solve for x
    x = 16,685,934.72/3,575.60
  6. Step 6: Final answer
    x = 4,666.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.