Home / 2,865.78-4,298.67-2,292.30

Finding the Fourth Proportional to 2,865.78, 4,298.67 and 2,292.30

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Solution

The fourth proportional to 2,865.78, 4,298.67 and 2,292.30 is: 3,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.78 : 4,298.67 = 2,292.30 : x
  2. Step 2: Convert to fraction form
    2,865.78/4,298.67 = 2,292.30/x
  3. Step 3: Cross multiply
    2,865.78x = 4,298.67 × 2,292.30
  4. Step 4: Simplify right side
    2,865.78x = 9,853,841.24
  5. Step 5: Solve for x
    x = 9,853,841.24/2,865.78
  6. Step 6: Final answer
    x = 3,438.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.