Home / 2,151.17-2,968.74-1,207.26

Finding the Fourth Proportional to 2,151.17, 2,968.74 and 1,207.26

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Solution

The fourth proportional to 2,151.17, 2,968.74 and 1,207.26 is: 1,666.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.17 : 2,968.74 = 1,207.26 : x
  2. Step 2: Convert to fraction form
    2,151.17/2,968.74 = 1,207.26/x
  3. Step 3: Cross multiply
    2,151.17x = 2,968.74 × 1,207.26
  4. Step 4: Simplify right side
    2,151.17x = 3,584,035.02
  5. Step 5: Solve for x
    x = 3,584,035.02/2,151.17
  6. Step 6: Final answer
    x = 1,666.09

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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.