Home / 1,711.13-2,361.56-1,188.27

Finding the Fourth Proportional to 1,711.13, 2,361.56 and 1,188.27

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Solution

The fourth proportional to 1,711.13, 2,361.56 and 1,188.27 is: 1,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.13 : 2,361.56 = 1,188.27 : x
  2. Step 2: Convert to fraction form
    1,711.13/2,361.56 = 1,188.27/x
  3. Step 3: Cross multiply
    1,711.13x = 2,361.56 × 1,188.27
  4. Step 4: Simplify right side
    1,711.13x = 2,806,164.96
  5. Step 5: Solve for x
    x = 2,806,164.96/1,711.13
  6. Step 6: Final answer
    x = 1,639.95

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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.