Home / 5,439.67-8,155.65-2,806.05

Finding the Fourth Proportional to 5,439.67, 8,155.65 and 2,806.05

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Solution

The fourth proportional to 5,439.67, 8,155.65 and 2,806.05 is: 4,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.67 : 8,155.65 = 2,806.05 : x
  2. Step 2: Convert to fraction form
    5,439.67/8,155.65 = 2,806.05/x
  3. Step 3: Cross multiply
    5,439.67x = 8,155.65 × 2,806.05
  4. Step 4: Simplify right side
    5,439.67x = 22,885,202.79
  5. Step 5: Solve for x
    x = 22,885,202.79/5,439.67
  6. Step 6: Final answer
    x = 4,207.10

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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.