Home / 2,376.66-3,278.99-1,381.12

Finding the Fourth Proportional to 2,376.66, 3,278.99 and 1,381.12

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Solution

The fourth proportional to 2,376.66, 3,278.99 and 1,381.12 is: 1,905.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.66 : 3,278.99 = 1,381.12 : x
  2. Step 2: Convert to fraction form
    2,376.66/3,278.99 = 1,381.12/x
  3. Step 3: Cross multiply
    2,376.66x = 3,278.99 × 1,381.12
  4. Step 4: Simplify right side
    2,376.66x = 4,528,671.76
  5. Step 5: Solve for x
    x = 4,528,671.76/2,376.66
  6. Step 6: Final answer
    x = 1,905.48

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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.