Home / 5,020-6,928.20-2,782.24

Finding the Fourth Proportional to 5,020, 6,928.20 and 2,782.24

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Solution

The fourth proportional to 5,020, 6,928.20 and 2,782.24 is: 3,839.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020 : 6,928.20 = 2,782.24 : x
  2. Step 2: Convert to fraction form
    5,020/6,928.20 = 2,782.24/x
  3. Step 3: Cross multiply
    5,020x = 6,928.20 × 2,782.24
  4. Step 4: Simplify right side
    5,020x = 19,275,915.17
  5. Step 5: Solve for x
    x = 19,275,915.17/5,020
  6. Step 6: Final answer
    x = 3,839.82

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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.