Home / 1,711.19-2,361.47-965.16

Finding the Fourth Proportional to 1,711.19, 2,361.47 and 965.16

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Solution

The fourth proportional to 1,711.19, 2,361.47 and 965.16 is: 1,331.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.19 : 2,361.47 = 965.16 : x
  2. Step 2: Convert to fraction form
    1,711.19/2,361.47 = 965.16/x
  3. Step 3: Cross multiply
    1,711.19x = 2,361.47 × 965.16
  4. Step 4: Simplify right side
    1,711.19x = 2,279,191.56
  5. Step 5: Solve for x
    x = 2,279,191.56/1,711.19
  6. Step 6: Final answer
    x = 1,331.93

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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.