Home / 5,713.80-8,570.70-3,515.40

Finding the Fourth Proportional to 5,713.80, 8,570.70 and 3,515.40

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Solution

The fourth proportional to 5,713.80, 8,570.70 and 3,515.40 is: 5,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,713.80 : 8,570.70 = 3,515.40 : x
  2. Step 2: Convert to fraction form
    5,713.80/8,570.70 = 3,515.40/x
  3. Step 3: Cross multiply
    5,713.80x = 8,570.70 × 3,515.40
  4. Step 4: Simplify right side
    5,713.80x = 30,129,438.78
  5. Step 5: Solve for x
    x = 30,129,438.78/5,713.80
  6. Step 6: Final answer
    x = 5,273.10

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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.