Home / 2,379.04-3,283.16-1,331.20

Finding the Fourth Proportional to 2,379.04, 3,283.16 and 1,331.20

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Solution

The fourth proportional to 2,379.04, 3,283.16 and 1,331.20 is: 1,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.04 : 3,283.16 = 1,331.20 : x
  2. Step 2: Convert to fraction form
    2,379.04/3,283.16 = 1,331.20/x
  3. Step 3: Cross multiply
    2,379.04x = 3,283.16 × 1,331.20
  4. Step 4: Simplify right side
    2,379.04x = 4,370,542.59
  5. Step 5: Solve for x
    x = 4,370,542.59/2,379.04
  6. Step 6: Final answer
    x = 1,837.10

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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.