Home / 1,558.44-2,149.02-1,279.08

Finding the Fourth Proportional to 1,558.44, 2,149.02 and 1,279.08

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Solution

The fourth proportional to 1,558.44, 2,149.02 and 1,279.08 is: 1,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.44 : 2,149.02 = 1,279.08 : x
  2. Step 2: Convert to fraction form
    1,558.44/2,149.02 = 1,279.08/x
  3. Step 3: Cross multiply
    1,558.44x = 2,149.02 × 1,279.08
  4. Step 4: Simplify right side
    1,558.44x = 2,748,768.50
  5. Step 5: Solve for x
    x = 2,748,768.50/1,558.44
  6. Step 6: Final answer
    x = 1,763.79

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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.