Home / 3,415.58-4,712.67-2,279.02

Finding the Fourth Proportional to 3,415.58, 4,712.67 and 2,279.02

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Solution

The fourth proportional to 3,415.58, 4,712.67 and 2,279.02 is: 3,144.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.58 : 4,712.67 = 2,279.02 : x
  2. Step 2: Convert to fraction form
    3,415.58/4,712.67 = 2,279.02/x
  3. Step 3: Cross multiply
    3,415.58x = 4,712.67 × 2,279.02
  4. Step 4: Simplify right side
    3,415.58x = 10,740,266.24
  5. Step 5: Solve for x
    x = 10,740,266.24/3,415.58
  6. Step 6: Final answer
    x = 3,144.49

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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.