Home / 4,919.28-6,788.54-2,681.09

Finding the Fourth Proportional to 4,919.28, 6,788.54 and 2,681.09

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Solution

The fourth proportional to 4,919.28, 6,788.54 and 2,681.09 is: 3,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.28 : 6,788.54 = 2,681.09 : x
  2. Step 2: Convert to fraction form
    4,919.28/6,788.54 = 2,681.09/x
  3. Step 3: Cross multiply
    4,919.28x = 6,788.54 × 2,681.09
  4. Step 4: Simplify right side
    4,919.28x = 18,200,686.71
  5. Step 5: Solve for x
    x = 18,200,686.71/4,919.28
  6. Step 6: Final answer
    x = 3,699.87

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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.