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Finding the Fourth Proportional to 1,501.44, 2,253.60 and 852.72

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Solution

The fourth proportional to 1,501.44, 2,253.60 and 852.72 is: 1,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501.44 : 2,253.60 = 852.72 : x
  2. Step 2: Convert to fraction form
    1,501.44/2,253.60 = 852.72/x
  3. Step 3: Cross multiply
    1,501.44x = 2,253.60 × 852.72
  4. Step 4: Simplify right side
    1,501.44x = 1,921,689.79
  5. Step 5: Solve for x
    x = 1,921,689.79/1,501.44
  6. Step 6: Final answer
    x = 1,279.90

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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.