Home / 3,711.87-5,570.51-2,990.16

Finding the Fourth Proportional to 3,711.87, 5,570.51 and 2,990.16

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Solution

The fourth proportional to 3,711.87, 5,570.51 and 2,990.16 is: 4,487.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.87 : 5,570.51 = 2,990.16 : x
  2. Step 2: Convert to fraction form
    3,711.87/5,570.51 = 2,990.16/x
  3. Step 3: Cross multiply
    3,711.87x = 5,570.51 × 2,990.16
  4. Step 4: Simplify right side
    3,711.87x = 16,656,701.23
  5. Step 5: Solve for x
    x = 16,656,701.23/3,711.87
  6. Step 6: Final answer
    x = 4,487.42

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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.