Home / 4,707.12-7,065.78-3,540.45

Finding the Fourth Proportional to 4,707.12, 7,065.78 and 3,540.45

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Solution

The fourth proportional to 4,707.12, 7,065.78 and 3,540.45 is: 5,314.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.12 : 7,065.78 = 3,540.45 : x
  2. Step 2: Convert to fraction form
    4,707.12/7,065.78 = 3,540.45/x
  3. Step 3: Cross multiply
    4,707.12x = 7,065.78 × 3,540.45
  4. Step 4: Simplify right side
    4,707.12x = 25,016,040.80
  5. Step 5: Solve for x
    x = 25,016,040.80/4,707.12
  6. Step 6: Final answer
    x = 5,314.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.