Home / 6,859.20-9,465.69-3,715.39

Finding the Fourth Proportional to 6,859.20, 9,465.69 and 3,715.39

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Solution

The fourth proportional to 6,859.20, 9,465.69 and 3,715.39 is: 5,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.20 : 9,465.69 = 3,715.39 : x
  2. Step 2: Convert to fraction form
    6,859.20/9,465.69 = 3,715.39/x
  3. Step 3: Cross multiply
    6,859.20x = 9,465.69 × 3,715.39
  4. Step 4: Simplify right side
    6,859.20x = 35,168,729.97
  5. Step 5: Solve for x
    x = 35,168,729.97/6,859.20
  6. Step 6: Final answer
    x = 5,127.23

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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.