Home / 1,748.24-2,621.96-515.36

Finding the Fourth Proportional to 1,748.24, 2,621.96 and 515.36

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Solution

The fourth proportional to 1,748.24, 2,621.96 and 515.36 is: 772.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.24 : 2,621.96 = 515.36 : x
  2. Step 2: Convert to fraction form
    1,748.24/2,621.96 = 515.36/x
  3. Step 3: Cross multiply
    1,748.24x = 2,621.96 × 515.36
  4. Step 4: Simplify right side
    1,748.24x = 1,351,253.31
  5. Step 5: Solve for x
    x = 1,351,253.31/1,748.24
  6. Step 6: Final answer
    x = 772.92

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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.