Home / 5,020.84-6,928.51-2,782.70

Finding the Fourth Proportional to 5,020.84, 6,928.51 and 2,782.70

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Solution

The fourth proportional to 5,020.84, 6,928.51 and 2,782.70 is: 3,839.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.84 : 6,928.51 = 2,782.70 : x
  2. Step 2: Convert to fraction form
    5,020.84/6,928.51 = 2,782.70/x
  3. Step 3: Cross multiply
    5,020.84x = 6,928.51 × 2,782.70
  4. Step 4: Simplify right side
    5,020.84x = 19,279,977.82
  5. Step 5: Solve for x
    x = 19,279,977.82/5,020.84
  6. Step 6: Final answer
    x = 3,839.99

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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.