Home / 5,077.28-7,006.68-2,808.58

Finding the Fourth Proportional to 5,077.28, 7,006.68 and 2,808.58

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Solution

The fourth proportional to 5,077.28, 7,006.68 and 2,808.58 is: 3,875.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.28 : 7,006.68 = 2,808.58 : x
  2. Step 2: Convert to fraction form
    5,077.28/7,006.68 = 2,808.58/x
  3. Step 3: Cross multiply
    5,077.28x = 7,006.68 × 2,808.58
  4. Step 4: Simplify right side
    5,077.28x = 19,678,786.28
  5. Step 5: Solve for x
    x = 19,678,786.28/5,077.28
  6. Step 6: Final answer
    x = 3,875.86

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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.