Home / 2,376.30-3,278.77-1,491.78

Finding the Fourth Proportional to 2,376.30, 3,278.77 and 1,491.78

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Solution

The fourth proportional to 2,376.30, 3,278.77 and 1,491.78 is: 2,058.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.30 : 3,278.77 = 1,491.78 : x
  2. Step 2: Convert to fraction form
    2,376.30/3,278.77 = 1,491.78/x
  3. Step 3: Cross multiply
    2,376.30x = 3,278.77 × 1,491.78
  4. Step 4: Simplify right side
    2,376.30x = 4,891,199.78
  5. Step 5: Solve for x
    x = 4,891,199.78/2,376.30
  6. Step 6: Final answer
    x = 2,058.33

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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.