Home / 1,726.47-2,577.40-1,665.72

Finding the Fourth Proportional to 1,726.47, 2,577.40 and 1,665.72

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Solution

The fourth proportional to 1,726.47, 2,577.40 and 1,665.72 is: 2,486.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726.47 : 2,577.40 = 1,665.72 : x
  2. Step 2: Convert to fraction form
    1,726.47/2,577.40 = 1,665.72/x
  3. Step 3: Cross multiply
    1,726.47x = 2,577.40 × 1,665.72
  4. Step 4: Simplify right side
    1,726.47x = 4,293,222.56
  5. Step 5: Solve for x
    x = 4,293,222.56/1,726.47
  6. Step 6: Final answer
    x = 2,486.71

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.