Home / 5,115.96-7,673.85-1,417.77

Finding the Fourth Proportional to 5,115.96, 7,673.85 and 1,417.77

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Solution

The fourth proportional to 5,115.96, 7,673.85 and 1,417.77 is: 2,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.96 : 7,673.85 = 1,417.77 : x
  2. Step 2: Convert to fraction form
    5,115.96/7,673.85 = 1,417.77/x
  3. Step 3: Cross multiply
    5,115.96x = 7,673.85 × 1,417.77
  4. Step 4: Simplify right side
    5,115.96x = 10,879,754.31
  5. Step 5: Solve for x
    x = 10,879,754.31/5,115.96
  6. Step 6: Final answer
    x = 2,126.63

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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.