Home / 2,376.23-3,279.12-1,328.29

Finding the Fourth Proportional to 2,376.23, 3,279.12 and 1,328.29

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Solution

The fourth proportional to 2,376.23, 3,279.12 and 1,328.29 is: 1,832.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.23 : 3,279.12 = 1,328.29 : x
  2. Step 2: Convert to fraction form
    2,376.23/3,279.12 = 1,328.29/x
  3. Step 3: Cross multiply
    2,376.23x = 3,279.12 × 1,328.29
  4. Step 4: Simplify right side
    2,376.23x = 4,355,605.91
  5. Step 5: Solve for x
    x = 4,355,605.91/2,376.23
  6. Step 6: Final answer
    x = 1,832.99

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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.