Home / 5,008.46-6,911.90-3,121.16

Finding the Fourth Proportional to 5,008.46, 6,911.90 and 3,121.16

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Solution

The fourth proportional to 5,008.46, 6,911.90 and 3,121.16 is: 4,307.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.46 : 6,911.90 = 3,121.16 : x
  2. Step 2: Convert to fraction form
    5,008.46/6,911.90 = 3,121.16/x
  3. Step 3: Cross multiply
    5,008.46x = 6,911.90 × 3,121.16
  4. Step 4: Simplify right side
    5,008.46x = 21,573,145.80
  5. Step 5: Solve for x
    x = 21,573,145.80/5,008.46
  6. Step 6: Final answer
    x = 4,307.34

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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.