Home / 1,749.30-2,623.80-450.78

Finding the Fourth Proportional to 1,749.30, 2,623.80 and 450.78

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Solution

The fourth proportional to 1,749.30, 2,623.80 and 450.78 is: 676.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.30 : 2,623.80 = 450.78 : x
  2. Step 2: Convert to fraction form
    1,749.30/2,623.80 = 450.78/x
  3. Step 3: Cross multiply
    1,749.30x = 2,623.80 × 450.78
  4. Step 4: Simplify right side
    1,749.30x = 1,182,756.56
  5. Step 5: Solve for x
    x = 1,182,756.56/1,749.30
  6. Step 6: Final answer
    x = 676.13

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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.