Home / 7,741.40-10,686.18-5,225

Finding the Fourth Proportional to 7,741.40, 10,686.18 and 5,225

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Solution

The fourth proportional to 7,741.40, 10,686.18 and 5,225 is: 7,212.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,741.40 : 10,686.18 = 5,225 : x
  2. Step 2: Convert to fraction form
    7,741.40/10,686.18 = 5,225/x
  3. Step 3: Cross multiply
    7,741.40x = 10,686.18 × 5,225
  4. Step 4: Simplify right side
    7,741.40x = 55,835,290.50
  5. Step 5: Solve for x
    x = 55,835,290.50/7,741.40
  6. Step 6: Final answer
    x = 7,212.56

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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.