Home / 2,788.74-4,176.51-2,421.54

Finding the Fourth Proportional to 2,788.74, 4,176.51 and 2,421.54

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Solution

The fourth proportional to 2,788.74, 4,176.51 and 2,421.54 is: 3,626.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.74 : 4,176.51 = 2,421.54 : x
  2. Step 2: Convert to fraction form
    2,788.74/4,176.51 = 2,421.54/x
  3. Step 3: Cross multiply
    2,788.74x = 4,176.51 × 2,421.54
  4. Step 4: Simplify right side
    2,788.74x = 10,113,586.03
  5. Step 5: Solve for x
    x = 10,113,586.03/2,788.74
  6. Step 6: Final answer
    x = 3,626.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.