Home / 5,020.55-6,928.37-2,782.39

Finding the Fourth Proportional to 5,020.55, 6,928.37 and 2,782.39

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Solution

The fourth proportional to 5,020.55, 6,928.37 and 2,782.39 is: 3,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.55 : 6,928.37 = 2,782.39 : x
  2. Step 2: Convert to fraction form
    5,020.55/6,928.37 = 2,782.39/x
  3. Step 3: Cross multiply
    5,020.55x = 6,928.37 × 2,782.39
  4. Step 4: Simplify right side
    5,020.55x = 19,277,417.04
  5. Step 5: Solve for x
    x = 19,277,417.04/5,020.55
  6. Step 6: Final answer
    x = 3,839.70

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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.