Home / 1,711.60-2,360.11-1,238.56

Finding the Fourth Proportional to 1,711.60, 2,360.11 and 1,238.56

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Solution

The fourth proportional to 1,711.60, 2,360.11 and 1,238.56 is: 1,707.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.60 : 2,360.11 = 1,238.56 : x
  2. Step 2: Convert to fraction form
    1,711.60/2,360.11 = 1,238.56/x
  3. Step 3: Cross multiply
    1,711.60x = 2,360.11 × 1,238.56
  4. Step 4: Simplify right side
    1,711.60x = 2,923,137.84
  5. Step 5: Solve for x
    x = 2,923,137.84/1,711.60
  6. Step 6: Final answer
    x = 1,707.84

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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.