Home / 7,150.60-9,868.50-4,166.20

Finding the Fourth Proportional to 7,150.60, 9,868.50 and 4,166.20

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Solution

The fourth proportional to 7,150.60, 9,868.50 and 4,166.20 is: 5,749.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.60 : 9,868.50 = 4,166.20 : x
  2. Step 2: Convert to fraction form
    7,150.60/9,868.50 = 4,166.20/x
  3. Step 3: Cross multiply
    7,150.60x = 9,868.50 × 4,166.20
  4. Step 4: Simplify right side
    7,150.60x = 41,114,144.70
  5. Step 5: Solve for x
    x = 41,114,144.70/7,150.60
  6. Step 6: Final answer
    x = 5,749.75

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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.