Home / 5,599.72-7,727.78-3,115.72

Finding the Fourth Proportional to 5,599.72, 7,727.78 and 3,115.72

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Solution

The fourth proportional to 5,599.72, 7,727.78 and 3,115.72 is: 4,299.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,599.72 : 7,727.78 = 3,115.72 : x
  2. Step 2: Convert to fraction form
    5,599.72/7,727.78 = 3,115.72/x
  3. Step 3: Cross multiply
    5,599.72x = 7,727.78 × 3,115.72
  4. Step 4: Simplify right side
    5,599.72x = 24,077,598.70
  5. Step 5: Solve for x
    x = 24,077,598.70/5,599.72
  6. Step 6: Final answer
    x = 4,299.79

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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.