Home / 2,147.22-2,958.78-2,031.04

Finding the Fourth Proportional to 2,147.22, 2,958.78 and 2,031.04

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Solution

The fourth proportional to 2,147.22, 2,958.78 and 2,031.04 is: 2,798.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.22 : 2,958.78 = 2,031.04 : x
  2. Step 2: Convert to fraction form
    2,147.22/2,958.78 = 2,031.04/x
  3. Step 3: Cross multiply
    2,147.22x = 2,958.78 × 2,031.04
  4. Step 4: Simplify right side
    2,147.22x = 6,009,400.53
  5. Step 5: Solve for x
    x = 6,009,400.53/2,147.22
  6. Step 6: Final answer
    x = 2,798.69

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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.