Home / 2,376.70-3,279.87-1,328.75

Finding the Fourth Proportional to 2,376.70, 3,279.87 and 1,328.75

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Solution

The fourth proportional to 2,376.70, 3,279.87 and 1,328.75 is: 1,833.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.70 : 3,279.87 = 1,328.75 : x
  2. Step 2: Convert to fraction form
    2,376.70/3,279.87 = 1,328.75/x
  3. Step 3: Cross multiply
    2,376.70x = 3,279.87 × 1,328.75
  4. Step 4: Simplify right side
    2,376.70x = 4,358,127.26
  5. Step 5: Solve for x
    x = 4,358,127.26/2,376.70
  6. Step 6: Final answer
    x = 1,833.69

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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.