Home / 5,019.90-6,927.51-2,781.81

Finding the Fourth Proportional to 5,019.90, 6,927.51 and 2,781.81

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Solution

The fourth proportional to 5,019.90, 6,927.51 and 2,781.81 is: 3,838.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.90 : 6,927.51 = 2,781.81 : x
  2. Step 2: Convert to fraction form
    5,019.90/6,927.51 = 2,781.81/x
  3. Step 3: Cross multiply
    5,019.90x = 6,927.51 × 2,781.81
  4. Step 4: Simplify right side
    5,019.90x = 19,271,027.02
  5. Step 5: Solve for x
    x = 19,271,027.02/5,019.90
  6. Step 6: Final answer
    x = 3,838.93

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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.