Home / 1,620.20-2,430.35-632.97

Finding the Fourth Proportional to 1,620.20, 2,430.35 and 632.97

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Solution

The fourth proportional to 1,620.20, 2,430.35 and 632.97 is: 949.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.20 : 2,430.35 = 632.97 : x
  2. Step 2: Convert to fraction form
    1,620.20/2,430.35 = 632.97/x
  3. Step 3: Cross multiply
    1,620.20x = 2,430.35 × 632.97
  4. Step 4: Simplify right side
    1,620.20x = 1,538,344.72
  5. Step 5: Solve for x
    x = 1,538,344.72/1,620.20
  6. Step 6: Final answer
    x = 949.48

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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.