Home / 1,449.16-2,159.09-1,375.72

Finding the Fourth Proportional to 1,449.16, 2,159.09 and 1,375.72

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Solution

The fourth proportional to 1,449.16, 2,159.09 and 1,375.72 is: 2,049.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.16 : 2,159.09 = 1,375.72 : x
  2. Step 2: Convert to fraction form
    1,449.16/2,159.09 = 1,375.72/x
  3. Step 3: Cross multiply
    1,449.16x = 2,159.09 × 1,375.72
  4. Step 4: Simplify right side
    1,449.16x = 2,970,303.29
  5. Step 5: Solve for x
    x = 2,970,303.29/1,449.16
  6. Step 6: Final answer
    x = 2,049.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.