Home / 7,311.25-10,089.66-4,167.64

Finding the Fourth Proportional to 7,311.25, 10,089.66 and 4,167.64

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Solution

The fourth proportional to 7,311.25, 10,089.66 and 4,167.64 is: 5,751.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.25 : 10,089.66 = 4,167.64 : x
  2. Step 2: Convert to fraction form
    7,311.25/10,089.66 = 4,167.64/x
  3. Step 3: Cross multiply
    7,311.25x = 10,089.66 × 4,167.64
  4. Step 4: Simplify right side
    7,311.25x = 42,050,070.60
  5. Step 5: Solve for x
    x = 42,050,070.60/7,311.25
  6. Step 6: Final answer
    x = 5,751.42

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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.