Home / 7,378.80-10,175.76-5,697.54

Finding the Fourth Proportional to 7,378.80, 10,175.76 and 5,697.54

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Solution

The fourth proportional to 7,378.80, 10,175.76 and 5,697.54 is: 7,857.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.80 : 10,175.76 = 5,697.54 : x
  2. Step 2: Convert to fraction form
    7,378.80/10,175.76 = 5,697.54/x
  3. Step 3: Cross multiply
    7,378.80x = 10,175.76 × 5,697.54
  4. Step 4: Simplify right side
    7,378.80x = 57,976,799.63
  5. Step 5: Solve for x
    x = 57,976,799.63/7,378.80
  6. Step 6: Final answer
    x = 7,857.21

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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.