Home / 5,712.42-7,881.38-3,355.32

Finding the Fourth Proportional to 5,712.42, 7,881.38 and 3,355.32

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Solution

The fourth proportional to 5,712.42, 7,881.38 and 3,355.32 is: 4,629.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.42 : 7,881.38 = 3,355.32 : x
  2. Step 2: Convert to fraction form
    5,712.42/7,881.38 = 3,355.32/x
  3. Step 3: Cross multiply
    5,712.42x = 7,881.38 × 3,355.32
  4. Step 4: Simplify right side
    5,712.42x = 26,444,551.94
  5. Step 5: Solve for x
    x = 26,444,551.94/5,712.42
  6. Step 6: Final answer
    x = 4,629.31

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1.5x scale

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.