Home / 2,726.16-4,088.78-971.09

Finding the Fourth Proportional to 2,726.16, 4,088.78 and 971.09

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Solution

The fourth proportional to 2,726.16, 4,088.78 and 971.09 is: 1,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726.16 : 4,088.78 = 971.09 : x
  2. Step 2: Convert to fraction form
    2,726.16/4,088.78 = 971.09/x
  3. Step 3: Cross multiply
    2,726.16x = 4,088.78 × 971.09
  4. Step 4: Simplify right side
    2,726.16x = 3,970,567.05
  5. Step 5: Solve for x
    x = 3,970,567.05/2,726.16
  6. Step 6: Final answer
    x = 1,456.47

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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.