Home / 2,788.12-3,818.32-2,751.67

Finding the Fourth Proportional to 2,788.12, 3,818.32 and 2,751.67

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Solution

The fourth proportional to 2,788.12, 3,818.32 and 2,751.67 is: 3,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.12 : 3,818.32 = 2,751.67 : x
  2. Step 2: Convert to fraction form
    2,788.12/3,818.32 = 2,751.67/x
  3. Step 3: Cross multiply
    2,788.12x = 3,818.32 × 2,751.67
  4. Step 4: Simplify right side
    2,788.12x = 10,506,742.84
  5. Step 5: Solve for x
    x = 10,506,742.84/2,788.12
  6. Step 6: Final answer
    x = 3,768.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.