Home / 5,005.81-7,508.87-1,718.85

Finding the Fourth Proportional to 5,005.81, 7,508.87 and 1,718.85

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Solution

The fourth proportional to 5,005.81, 7,508.87 and 1,718.85 is: 2,578.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.81 : 7,508.87 = 1,718.85 : x
  2. Step 2: Convert to fraction form
    5,005.81/7,508.87 = 1,718.85/x
  3. Step 3: Cross multiply
    5,005.81x = 7,508.87 × 1,718.85
  4. Step 4: Simplify right side
    5,005.81x = 12,906,621.20
  5. Step 5: Solve for x
    x = 12,906,621.20/5,005.81
  6. Step 6: Final answer
    x = 2,578.33

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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.