Home / 5,718.36-8,578.08-2,386.20

Finding the Fourth Proportional to 5,718.36, 8,578.08 and 2,386.20

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Solution

The fourth proportional to 5,718.36, 8,578.08 and 2,386.20 is: 3,579.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.36 : 8,578.08 = 2,386.20 : x
  2. Step 2: Convert to fraction form
    5,718.36/8,578.08 = 2,386.20/x
  3. Step 3: Cross multiply
    5,718.36x = 8,578.08 × 2,386.20
  4. Step 4: Simplify right side
    5,718.36x = 20,469,014.50
  5. Step 5: Solve for x
    x = 20,469,014.50/5,718.36
  6. Step 6: Final answer
    x = 3,579.53

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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.