Home / 5,718.16-8,580.83-2,431.28

Finding the Fourth Proportional to 5,718.16, 8,580.83 and 2,431.28

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Solution

The fourth proportional to 5,718.16, 8,580.83 and 2,431.28 is: 3,648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.16 : 8,580.83 = 2,431.28 : x
  2. Step 2: Convert to fraction form
    5,718.16/8,580.83 = 2,431.28/x
  3. Step 3: Cross multiply
    5,718.16x = 8,580.83 × 2,431.28
  4. Step 4: Simplify right side
    5,718.16x = 20,862,400.36
  5. Step 5: Solve for x
    x = 20,862,400.36/5,718.16
  6. Step 6: Final answer
    x = 3,648.45

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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.