Home / 3,678.19-5,517.60-1,045.71

Finding the Fourth Proportional to 3,678.19, 5,517.60 and 1,045.71

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Solution

The fourth proportional to 3,678.19, 5,517.60 and 1,045.71 is: 1,568.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.19 : 5,517.60 = 1,045.71 : x
  2. Step 2: Convert to fraction form
    3,678.19/5,517.60 = 1,045.71/x
  3. Step 3: Cross multiply
    3,678.19x = 5,517.60 × 1,045.71
  4. Step 4: Simplify right side
    3,678.19x = 5,769,809.50
  5. Step 5: Solve for x
    x = 5,769,809.50/3,678.19
  6. Step 6: Final answer
    x = 1,568.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.