Home / 2,163.24-2,981.16-1,572.66

Finding the Fourth Proportional to 2,163.24, 2,981.16 and 1,572.66

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Solution

The fourth proportional to 2,163.24, 2,981.16 and 1,572.66 is: 2,167.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.24 : 2,981.16 = 1,572.66 : x
  2. Step 2: Convert to fraction form
    2,163.24/2,981.16 = 1,572.66/x
  3. Step 3: Cross multiply
    2,163.24x = 2,981.16 × 1,572.66
  4. Step 4: Simplify right side
    2,163.24x = 4,688,351.09
  5. Step 5: Solve for x
    x = 4,688,351.09/2,163.24
  6. Step 6: Final answer
    x = 2,167.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.