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Finding the Fourth Proportional to 1,762.47, 2,643.39 and 1,073.55

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Solution

The fourth proportional to 1,762.47, 2,643.39 and 1,073.55 is: 1,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762.47 : 2,643.39 = 1,073.55 : x
  2. Step 2: Convert to fraction form
    1,762.47/2,643.39 = 1,073.55/x
  3. Step 3: Cross multiply
    1,762.47x = 2,643.39 × 1,073.55
  4. Step 4: Simplify right side
    1,762.47x = 2,837,811.33
  5. Step 5: Solve for x
    x = 2,837,811.33/1,762.47
  6. Step 6: Final answer
    x = 1,610.13

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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.