Home / 1,143.31-1,710.64-1,074.19

Finding the Fourth Proportional to 1,143.31, 1,710.64 and 1,074.19

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Solution

The fourth proportional to 1,143.31, 1,710.64 and 1,074.19 is: 1,607.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.31 : 1,710.64 = 1,074.19 : x
  2. Step 2: Convert to fraction form
    1,143.31/1,710.64 = 1,074.19/x
  3. Step 3: Cross multiply
    1,143.31x = 1,710.64 × 1,074.19
  4. Step 4: Simplify right side
    1,143.31x = 1,837,552.38
  5. Step 5: Solve for x
    x = 1,837,552.38/1,143.31
  6. Step 6: Final answer
    x = 1,607.22

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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.