Home / 5,008.20-6,911.28-2,770.08

Finding the Fourth Proportional to 5,008.20, 6,911.28 and 2,770.08

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Solution

The fourth proportional to 5,008.20, 6,911.28 and 2,770.08 is: 3,822.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.20 : 6,911.28 = 2,770.08 : x
  2. Step 2: Convert to fraction form
    5,008.20/6,911.28 = 2,770.08/x
  3. Step 3: Cross multiply
    5,008.20x = 6,911.28 × 2,770.08
  4. Step 4: Simplify right side
    5,008.20x = 19,144,798.50
  5. Step 5: Solve for x
    x = 19,144,798.50/5,008.20
  6. Step 6: Final answer
    x = 3,822.69

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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.