Home / 2,261.04-3,120.14-1,316.86

Finding the Fourth Proportional to 2,261.04, 3,120.14 and 1,316.86

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Solution

The fourth proportional to 2,261.04, 3,120.14 and 1,316.86 is: 1,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.04 : 3,120.14 = 1,316.86 : x
  2. Step 2: Convert to fraction form
    2,261.04/3,120.14 = 1,316.86/x
  3. Step 3: Cross multiply
    2,261.04x = 3,120.14 × 1,316.86
  4. Step 4: Simplify right side
    2,261.04x = 4,108,771.96
  5. Step 5: Solve for x
    x = 4,108,771.96/2,261.04
  6. Step 6: Final answer
    x = 1,817.20

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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.