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Finding the Fourth Proportional to 5,253.02, 7,879.51 and 1,555.27

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Solution

The fourth proportional to 5,253.02, 7,879.51 and 1,555.27 is: 2,332.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,253.02 : 7,879.51 = 1,555.27 : x
  2. Step 2: Convert to fraction form
    5,253.02/7,879.51 = 1,555.27/x
  3. Step 3: Cross multiply
    5,253.02x = 7,879.51 × 1,555.27
  4. Step 4: Simplify right side
    5,253.02x = 12,254,757.74
  5. Step 5: Solve for x
    x = 12,254,757.74/5,253.02
  6. Step 6: Final answer
    x = 2,332.90

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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.