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Finding the Fourth Proportional to 5,878.68, 8,815.42 and 2,756.16

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Solution

The fourth proportional to 5,878.68, 8,815.42 and 2,756.16 is: 4,133.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.68 : 8,815.42 = 2,756.16 : x
  2. Step 2: Convert to fraction form
    5,878.68/8,815.42 = 2,756.16/x
  3. Step 3: Cross multiply
    5,878.68x = 8,815.42 × 2,756.16
  4. Step 4: Simplify right side
    5,878.68x = 24,296,707.99
  5. Step 5: Solve for x
    x = 24,296,707.99/5,878.68
  6. Step 6: Final answer
    x = 4,133.02

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1.5x scale

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.