Home / 1,370.43-1,886.40-1,195.47

Finding the Fourth Proportional to 1,370.43, 1,886.40 and 1,195.47

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Solution

The fourth proportional to 1,370.43, 1,886.40 and 1,195.47 is: 1,645.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.43 : 1,886.40 = 1,195.47 : x
  2. Step 2: Convert to fraction form
    1,370.43/1,886.40 = 1,195.47/x
  3. Step 3: Cross multiply
    1,370.43x = 1,886.40 × 1,195.47
  4. Step 4: Simplify right side
    1,370.43x = 2,255,134.61
  5. Step 5: Solve for x
    x = 2,255,134.61/1,370.43
  6. Step 6: Final answer
    x = 1,645.57

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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.