Home / 7,170.28-9,895.65-4,185.52

Finding the Fourth Proportional to 7,170.28, 9,895.65 and 4,185.52

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Solution

The fourth proportional to 7,170.28, 9,895.65 and 4,185.52 is: 5,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.28 : 9,895.65 = 4,185.52 : x
  2. Step 2: Convert to fraction form
    7,170.28/9,895.65 = 4,185.52/x
  3. Step 3: Cross multiply
    7,170.28x = 9,895.65 × 4,185.52
  4. Step 4: Simplify right side
    7,170.28x = 41,418,440.99
  5. Step 5: Solve for x
    x = 41,418,440.99/7,170.28
  6. Step 6: Final answer
    x = 5,776.40

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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.