Home / 1,501.92-2,253.40-680.56

Finding the Fourth Proportional to 1,501.92, 2,253.40 and 680.56

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Solution

The fourth proportional to 1,501.92, 2,253.40 and 680.56 is: 1,021.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501.92 : 2,253.40 = 680.56 : x
  2. Step 2: Convert to fraction form
    1,501.92/2,253.40 = 680.56/x
  3. Step 3: Cross multiply
    1,501.92x = 2,253.40 × 680.56
  4. Step 4: Simplify right side
    1,501.92x = 1,533,573.90
  5. Step 5: Solve for x
    x = 1,533,573.90/1,501.92
  6. Step 6: Final answer
    x = 1,021.08

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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.