Home / 2,239.43-3,090.80-1,295.06

Finding the Fourth Proportional to 2,239.43, 3,090.80 and 1,295.06

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Solution

The fourth proportional to 2,239.43, 3,090.80 and 1,295.06 is: 1,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.43 : 3,090.80 = 1,295.06 : x
  2. Step 2: Convert to fraction form
    2,239.43/3,090.80 = 1,295.06/x
  3. Step 3: Cross multiply
    2,239.43x = 3,090.80 × 1,295.06
  4. Step 4: Simplify right side
    2,239.43x = 4,002,776.20
  5. Step 5: Solve for x
    x = 4,002,776.20/2,239.43
  6. Step 6: Final answer
    x = 1,787.40

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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.