Home / 2,923.20-4,031.34-2,285.22

Finding the Fourth Proportional to 2,923.20, 4,031.34 and 2,285.22

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Solution

The fourth proportional to 2,923.20, 4,031.34 and 2,285.22 is: 3,151.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.20 : 4,031.34 = 2,285.22 : x
  2. Step 2: Convert to fraction form
    2,923.20/4,031.34 = 2,285.22/x
  3. Step 3: Cross multiply
    2,923.20x = 4,031.34 × 2,285.22
  4. Step 4: Simplify right side
    2,923.20x = 9,212,498.79
  5. Step 5: Solve for x
    x = 9,212,498.79/2,923.20
  6. Step 6: Final answer
    x = 3,151.51

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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.