Home / 5,990.45-8,986.68-2,478.51

Finding the Fourth Proportional to 5,990.45, 8,986.68 and 2,478.51

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Solution

The fourth proportional to 5,990.45, 8,986.68 and 2,478.51 is: 3,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,990.45 : 8,986.68 = 2,478.51 : x
  2. Step 2: Convert to fraction form
    5,990.45/8,986.68 = 2,478.51/x
  3. Step 3: Cross multiply
    5,990.45x = 8,986.68 × 2,478.51
  4. Step 4: Simplify right side
    5,990.45x = 22,273,576.25
  5. Step 5: Solve for x
    x = 22,273,576.25/5,990.45
  6. Step 6: Final answer
    x = 3,718.18

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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.