Home / 2,032.20-3,048.30-645.44

Finding the Fourth Proportional to 2,032.20, 3,048.30 and 645.44

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Solution

The fourth proportional to 2,032.20, 3,048.30 and 645.44 is: 968.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,032.20 : 3,048.30 = 645.44 : x
  2. Step 2: Convert to fraction form
    2,032.20/3,048.30 = 645.44/x
  3. Step 3: Cross multiply
    2,032.20x = 3,048.30 × 645.44
  4. Step 4: Simplify right side
    2,032.20x = 1,967,494.75
  5. Step 5: Solve for x
    x = 1,967,494.75/2,032.20
  6. Step 6: Final answer
    x = 968.16

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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.