Home / 1,308.24-1,805.19-1,043.34

Finding the Fourth Proportional to 1,308.24, 1,805.19 and 1,043.34

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Solution

The fourth proportional to 1,308.24, 1,805.19 and 1,043.34 is: 1,439.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.24 : 1,805.19 = 1,043.34 : x
  2. Step 2: Convert to fraction form
    1,308.24/1,805.19 = 1,043.34/x
  3. Step 3: Cross multiply
    1,308.24x = 1,805.19 × 1,043.34
  4. Step 4: Simplify right side
    1,308.24x = 1,883,426.93
  5. Step 5: Solve for x
    x = 1,883,426.93/1,308.24
  6. Step 6: Final answer
    x = 1,439.66

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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.