Home / 2,376.90-3,279.87-1,382.13

Finding the Fourth Proportional to 2,376.90, 3,279.87 and 1,382.13

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Solution

The fourth proportional to 2,376.90, 3,279.87 and 1,382.13 is: 1,907.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.90 : 3,279.87 = 1,382.13 : x
  2. Step 2: Convert to fraction form
    2,376.90/3,279.87 = 1,382.13/x
  3. Step 3: Cross multiply
    2,376.90x = 3,279.87 × 1,382.13
  4. Step 4: Simplify right side
    2,376.90x = 4,533,206.72
  5. Step 5: Solve for x
    x = 4,533,206.72/2,376.90
  6. Step 6: Final answer
    x = 1,907.19

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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.