Home / 2,261.21-3,389.77-875.48

Finding the Fourth Proportional to 2,261.21, 3,389.77 and 875.48

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Solution

The fourth proportional to 2,261.21, 3,389.77 and 875.48 is: 1,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.21 : 3,389.77 = 875.48 : x
  2. Step 2: Convert to fraction form
    2,261.21/3,389.77 = 875.48/x
  3. Step 3: Cross multiply
    2,261.21x = 3,389.77 × 875.48
  4. Step 4: Simplify right side
    2,261.21x = 2,967,656.70
  5. Step 5: Solve for x
    x = 2,967,656.70/2,261.21
  6. Step 6: Final answer
    x = 1,312.42

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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.