Home / 5,252.87-7,876.99-1,555.38

Finding the Fourth Proportional to 5,252.87, 7,876.99 and 1,555.38

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Solution

The fourth proportional to 5,252.87, 7,876.99 and 1,555.38 is: 2,332.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252.87 : 7,876.99 = 1,555.38 : x
  2. Step 2: Convert to fraction form
    5,252.87/7,876.99 = 1,555.38/x
  3. Step 3: Cross multiply
    5,252.87x = 7,876.99 × 1,555.38
  4. Step 4: Simplify right side
    5,252.87x = 12,251,708.82
  5. Step 5: Solve for x
    x = 12,251,708.82/5,252.87
  6. Step 6: Final answer
    x = 2,332.39

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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.