Home / 5,015.13-6,919.89-2,776.91

Finding the Fourth Proportional to 5,015.13, 6,919.89 and 2,776.91

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Solution

The fourth proportional to 5,015.13, 6,919.89 and 2,776.91 is: 3,831.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.13 : 6,919.89 = 2,776.91 : x
  2. Step 2: Convert to fraction form
    5,015.13/6,919.89 = 2,776.91/x
  3. Step 3: Cross multiply
    5,015.13x = 6,919.89 × 2,776.91
  4. Step 4: Simplify right side
    5,015.13x = 19,215,877.14
  5. Step 5: Solve for x
    x = 19,215,877.14/5,015.13
  6. Step 6: Final answer
    x = 3,831.58

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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.