Home / 3,102.68-4,281.36-1,705.16

Finding the Fourth Proportional to 3,102.68, 4,281.36 and 1,705.16

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Solution

The fourth proportional to 3,102.68, 4,281.36 and 1,705.16 is: 2,352.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.68 : 4,281.36 = 1,705.16 : x
  2. Step 2: Convert to fraction form
    3,102.68/4,281.36 = 1,705.16/x
  3. Step 3: Cross multiply
    3,102.68x = 4,281.36 × 1,705.16
  4. Step 4: Simplify right side
    3,102.68x = 7,300,403.82
  5. Step 5: Solve for x
    x = 7,300,403.82/3,102.68
  6. Step 6: Final answer
    x = 2,352.93

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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.