Home / 1,426.14-1,966.41-1,178.15

Finding the Fourth Proportional to 1,426.14, 1,966.41 and 1,178.15

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Solution

The fourth proportional to 1,426.14, 1,966.41 and 1,178.15 is: 1,624.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.14 : 1,966.41 = 1,178.15 : x
  2. Step 2: Convert to fraction form
    1,426.14/1,966.41 = 1,178.15/x
  3. Step 3: Cross multiply
    1,426.14x = 1,966.41 × 1,178.15
  4. Step 4: Simplify right side
    1,426.14x = 2,316,716.11
  5. Step 5: Solve for x
    x = 2,316,716.11/1,426.14
  6. Step 6: Final answer
    x = 1,624.47

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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.