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Finding the Fourth Proportional to 2,700.08, 3,722.28 and 1,913.84

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Solution

The fourth proportional to 2,700.08, 3,722.28 and 1,913.84 is: 2,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.08 : 3,722.28 = 1,913.84 : x
  2. Step 2: Convert to fraction form
    2,700.08/3,722.28 = 1,913.84/x
  3. Step 3: Cross multiply
    2,700.08x = 3,722.28 × 1,913.84
  4. Step 4: Simplify right side
    2,700.08x = 7,123,848.36
  5. Step 5: Solve for x
    x = 7,123,848.36/2,700.08
  6. Step 6: Final answer
    x = 2,638.38

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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.