Home / 3,718.88-5,569.77-2,155.01

Finding the Fourth Proportional to 3,718.88, 5,569.77 and 2,155.01

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Solution

The fourth proportional to 3,718.88, 5,569.77 and 2,155.01 is: 3,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.88 : 5,569.77 = 2,155.01 : x
  2. Step 2: Convert to fraction form
    3,718.88/5,569.77 = 2,155.01/x
  3. Step 3: Cross multiply
    3,718.88x = 5,569.77 × 2,155.01
  4. Step 4: Simplify right side
    3,718.88x = 12,002,931.21
  5. Step 5: Solve for x
    x = 12,002,931.21/3,718.88
  6. Step 6: Final answer
    x = 3,227.57

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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.