Home / 1,558.10-2,148.83-1,348.21

Finding the Fourth Proportional to 1,558.10, 2,148.83 and 1,348.21

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Solution

The fourth proportional to 1,558.10, 2,148.83 and 1,348.21 is: 1,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.10 : 2,148.83 = 1,348.21 : x
  2. Step 2: Convert to fraction form
    1,558.10/2,148.83 = 1,348.21/x
  3. Step 3: Cross multiply
    1,558.10x = 2,148.83 × 1,348.21
  4. Step 4: Simplify right side
    1,558.10x = 2,897,067.35
  5. Step 5: Solve for x
    x = 2,897,067.35/1,558.10
  6. Step 6: Final answer
    x = 1,859.36

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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.