Home / 5,015.31-6,920.42-2,777.18

Finding the Fourth Proportional to 5,015.31, 6,920.42 and 2,777.18

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Solution

The fourth proportional to 5,015.31, 6,920.42 and 2,777.18 is: 3,832.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.31 : 6,920.42 = 2,777.18 : x
  2. Step 2: Convert to fraction form
    5,015.31/6,920.42 = 2,777.18/x
  3. Step 3: Cross multiply
    5,015.31x = 6,920.42 × 2,777.18
  4. Step 4: Simplify right side
    5,015.31x = 19,219,203.53
  5. Step 5: Solve for x
    x = 19,219,203.53/5,015.31
  6. Step 6: Final answer
    x = 3,832.11

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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.