Home / 5,404.16-8,106.72-2,806.40

Finding the Fourth Proportional to 5,404.16, 8,106.72 and 2,806.40

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Solution

The fourth proportional to 5,404.16, 8,106.72 and 2,806.40 is: 4,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,404.16 : 8,106.72 = 2,806.40 : x
  2. Step 2: Convert to fraction form
    5,404.16/8,106.72 = 2,806.40/x
  3. Step 3: Cross multiply
    5,404.16x = 8,106.72 × 2,806.40
  4. Step 4: Simplify right side
    5,404.16x = 22,750,699.01
  5. Step 5: Solve for x
    x = 22,750,699.01/5,404.16
  6. Step 6: Final answer
    x = 4,209.85

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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.