Home / 3,440.13-4,747.32-1,868.19

Finding the Fourth Proportional to 3,440.13, 4,747.32 and 1,868.19

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Solution

The fourth proportional to 3,440.13, 4,747.32 and 1,868.19 is: 2,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.13 : 4,747.32 = 1,868.19 : x
  2. Step 2: Convert to fraction form
    3,440.13/4,747.32 = 1,868.19/x
  3. Step 3: Cross multiply
    3,440.13x = 4,747.32 × 1,868.19
  4. Step 4: Simplify right side
    3,440.13x = 8,868,895.75
  5. Step 5: Solve for x
    x = 8,868,895.75/3,440.13
  6. Step 6: Final answer
    x = 2,578.07

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Double scale
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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.