Home / 2,325.20-3,488.30-765.33

Finding the Fourth Proportional to 2,325.20, 3,488.30 and 765.33

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Solution

The fourth proportional to 2,325.20, 3,488.30 and 765.33 is: 1,148.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325.20 : 3,488.30 = 765.33 : x
  2. Step 2: Convert to fraction form
    2,325.20/3,488.30 = 765.33/x
  3. Step 3: Cross multiply
    2,325.20x = 3,488.30 × 765.33
  4. Step 4: Simplify right side
    2,325.20x = 2,669,696.81
  5. Step 5: Solve for x
    x = 2,669,696.81/2,325.20
  6. Step 6: Final answer
    x = 1,148.16

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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.