Home / 2,084.20-3,126.26-989.35

Finding the Fourth Proportional to 2,084.20, 3,126.26 and 989.35

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Solution

The fourth proportional to 2,084.20, 3,126.26 and 989.35 is: 1,484.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.20 : 3,126.26 = 989.35 : x
  2. Step 2: Convert to fraction form
    2,084.20/3,126.26 = 989.35/x
  3. Step 3: Cross multiply
    2,084.20x = 3,126.26 × 989.35
  4. Step 4: Simplify right side
    2,084.20x = 3,092,959.99
  5. Step 5: Solve for x
    x = 3,092,959.99/2,084.20
  6. Step 6: Final answer
    x = 1,484.01

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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.