Home / 2,261.77-3,386.81-1,561.14

Finding the Fourth Proportional to 2,261.77, 3,386.81 and 1,561.14

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Solution

The fourth proportional to 2,261.77, 3,386.81 and 1,561.14 is: 2,337.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.77 : 3,386.81 = 1,561.14 : x
  2. Step 2: Convert to fraction form
    2,261.77/3,386.81 = 1,561.14/x
  3. Step 3: Cross multiply
    2,261.77x = 3,386.81 × 1,561.14
  4. Step 4: Simplify right side
    2,261.77x = 5,287,284.56
  5. Step 5: Solve for x
    x = 5,287,284.56/2,261.77
  6. Step 6: Final answer
    x = 2,337.68

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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.