Home / 4,988.46-7,474.59-2,648.28

Finding the Fourth Proportional to 4,988.46, 7,474.59 and 2,648.28

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Solution

The fourth proportional to 4,988.46, 7,474.59 and 2,648.28 is: 3,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.46 : 7,474.59 = 2,648.28 : x
  2. Step 2: Convert to fraction form
    4,988.46/7,474.59 = 2,648.28/x
  3. Step 3: Cross multiply
    4,988.46x = 7,474.59 × 2,648.28
  4. Step 4: Simplify right side
    4,988.46x = 19,794,807.21
  5. Step 5: Solve for x
    x = 19,794,807.21/4,988.46
  6. Step 6: Final answer
    x = 3,968.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.