Home / 1,557.17-2,149.05-1,163.51

Finding the Fourth Proportional to 1,557.17, 2,149.05 and 1,163.51

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Solution

The fourth proportional to 1,557.17, 2,149.05 and 1,163.51 is: 1,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.17 : 2,149.05 = 1,163.51 : x
  2. Step 2: Convert to fraction form
    1,557.17/2,149.05 = 1,163.51/x
  3. Step 3: Cross multiply
    1,557.17x = 2,149.05 × 1,163.51
  4. Step 4: Simplify right side
    1,557.17x = 2,500,435.35
  5. Step 5: Solve for x
    x = 2,500,435.35/1,557.17
  6. Step 6: Final answer
    x = 1,605.76

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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.