Home / 5,115.77-7,673.41-1,605.23

Finding the Fourth Proportional to 5,115.77, 7,673.41 and 1,605.23

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Solution

The fourth proportional to 5,115.77, 7,673.41 and 1,605.23 is: 2,407.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.77 : 7,673.41 = 1,605.23 : x
  2. Step 2: Convert to fraction form
    5,115.77/7,673.41 = 1,605.23/x
  3. Step 3: Cross multiply
    5,115.77x = 7,673.41 × 1,605.23
  4. Step 4: Simplify right side
    5,115.77x = 12,317,587.93
  5. Step 5: Solve for x
    x = 12,317,587.93/5,115.77
  6. Step 6: Final answer
    x = 2,407.77

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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.