Home / 5,436.10-8,166.30-5,290.30

Finding the Fourth Proportional to 5,436.10, 8,166.30 and 5,290.30

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Solution

The fourth proportional to 5,436.10, 8,166.30 and 5,290.30 is: 7,947.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.10 : 8,166.30 = 5,290.30 : x
  2. Step 2: Convert to fraction form
    5,436.10/8,166.30 = 5,290.30/x
  3. Step 3: Cross multiply
    5,436.10x = 8,166.30 × 5,290.30
  4. Step 4: Simplify right side
    5,436.10x = 43,202,176.89
  5. Step 5: Solve for x
    x = 43,202,176.89/5,436.10
  6. Step 6: Final answer
    x = 7,947.27

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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.