Home / 5,020.47-6,928.40-2,782.14

Finding the Fourth Proportional to 5,020.47, 6,928.40 and 2,782.14

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Solution

The fourth proportional to 5,020.47, 6,928.40 and 2,782.14 is: 3,839.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.47 : 6,928.40 = 2,782.14 : x
  2. Step 2: Convert to fraction form
    5,020.47/6,928.40 = 2,782.14/x
  3. Step 3: Cross multiply
    5,020.47x = 6,928.40 × 2,782.14
  4. Step 4: Simplify right side
    5,020.47x = 19,275,778.78
  5. Step 5: Solve for x
    x = 19,275,778.78/5,020.47
  6. Step 6: Final answer
    x = 3,839.44

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Double scale
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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.