Home / 5,253.27-7,878.39-1,555.44

Finding the Fourth Proportional to 5,253.27, 7,878.39 and 1,555.44

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Solution

The fourth proportional to 5,253.27, 7,878.39 and 1,555.44 is: 2,332.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,253.27 : 7,878.39 = 1,555.44 : x
  2. Step 2: Convert to fraction form
    5,253.27/7,878.39 = 1,555.44/x
  3. Step 3: Cross multiply
    5,253.27x = 7,878.39 × 1,555.44
  4. Step 4: Simplify right side
    5,253.27x = 12,254,362.94
  5. Step 5: Solve for x
    x = 12,254,362.94/5,253.27
  6. Step 6: Final answer
    x = 2,332.71

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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.