Home / 5,015.88-6,923.74-2,920

Finding the Fourth Proportional to 5,015.88, 6,923.74 and 2,920

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Solution

The fourth proportional to 5,015.88, 6,923.74 and 2,920 is: 4,030.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.88 : 6,923.74 = 2,920 : x
  2. Step 2: Convert to fraction form
    5,015.88/6,923.74 = 2,920/x
  3. Step 3: Cross multiply
    5,015.88x = 6,923.74 × 2,920
  4. Step 4: Simplify right side
    5,015.88x = 20,217,320.80
  5. Step 5: Solve for x
    x = 20,217,320.80/5,015.88
  6. Step 6: Final answer
    x = 4,030.66

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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.