Home / 1,971.20-2,711.04-1,763.84

Finding the Fourth Proportional to 1,971.20, 2,711.04 and 1,763.84

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Solution

The fourth proportional to 1,971.20, 2,711.04 and 1,763.84 is: 2,425.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.20 : 2,711.04 = 1,763.84 : x
  2. Step 2: Convert to fraction form
    1,971.20/2,711.04 = 1,763.84/x
  3. Step 3: Cross multiply
    1,971.20x = 2,711.04 × 1,763.84
  4. Step 4: Simplify right side
    1,971.20x = 4,781,840.79
  5. Step 5: Solve for x
    x = 4,781,840.79/1,971.20
  6. Step 6: Final answer
    x = 2,425.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.