Home / 7,184.28-10,775.19-1,988.94

Finding the Fourth Proportional to 7,184.28, 10,775.19 and 1,988.94

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Solution

The fourth proportional to 7,184.28, 10,775.19 and 1,988.94 is: 2,983.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,184.28 : 10,775.19 = 1,988.94 : x
  2. Step 2: Convert to fraction form
    7,184.28/10,775.19 = 1,988.94/x
  3. Step 3: Cross multiply
    7,184.28x = 10,775.19 × 1,988.94
  4. Step 4: Simplify right side
    7,184.28x = 21,431,179.46
  5. Step 5: Solve for x
    x = 21,431,179.46/7,184.28
  6. Step 6: Final answer
    x = 2,983.07

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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.