Home / 4,279.15-5,921.40-3,648.68

Finding the Fourth Proportional to 4,279.15, 5,921.40 and 3,648.68

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Solution

The fourth proportional to 4,279.15, 5,921.40 and 3,648.68 is: 5,048.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.15 : 5,921.40 = 3,648.68 : x
  2. Step 2: Convert to fraction form
    4,279.15/5,921.40 = 3,648.68/x
  3. Step 3: Cross multiply
    4,279.15x = 5,921.40 × 3,648.68
  4. Step 4: Simplify right side
    4,279.15x = 21,605,300.03
  5. Step 5: Solve for x
    x = 21,605,300.03/4,279.15
  6. Step 6: Final answer
    x = 5,048.98

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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.