Home / 2,376.19-3,278.77-1,328.05

Finding the Fourth Proportional to 2,376.19, 3,278.77 and 1,328.05

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Solution

The fourth proportional to 2,376.19, 3,278.77 and 1,328.05 is: 1,832.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.19 : 3,278.77 = 1,328.05 : x
  2. Step 2: Convert to fraction form
    2,376.19/3,278.77 = 1,328.05/x
  3. Step 3: Cross multiply
    2,376.19x = 3,278.77 × 1,328.05
  4. Step 4: Simplify right side
    2,376.19x = 4,354,370.50
  5. Step 5: Solve for x
    x = 4,354,370.50/2,376.19
  6. Step 6: Final answer
    x = 1,832.50

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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.