Home / 2,376.11-3,279.23-1,381.45

Finding the Fourth Proportional to 2,376.11, 3,279.23 and 1,381.45

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Solution

The fourth proportional to 2,376.11, 3,279.23 and 1,381.45 is: 1,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.11 : 3,279.23 = 1,381.45 : x
  2. Step 2: Convert to fraction form
    2,376.11/3,279.23 = 1,381.45/x
  3. Step 3: Cross multiply
    2,376.11x = 3,279.23 × 1,381.45
  4. Step 4: Simplify right side
    2,376.11x = 4,530,088.51
  5. Step 5: Solve for x
    x = 4,530,088.51/2,376.11
  6. Step 6: Final answer
    x = 1,906.52

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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.