Home / 5,436.91-8,149.15-2,312.34

Finding the Fourth Proportional to 5,436.91, 8,149.15 and 2,312.34

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Solution

The fourth proportional to 5,436.91, 8,149.15 and 2,312.34 is: 3,465.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.91 : 8,149.15 = 2,312.34 : x
  2. Step 2: Convert to fraction form
    5,436.91/8,149.15 = 2,312.34/x
  3. Step 3: Cross multiply
    5,436.91x = 8,149.15 × 2,312.34
  4. Step 4: Simplify right side
    5,436.91x = 18,843,605.51
  5. Step 5: Solve for x
    x = 18,843,605.51/5,436.91
  6. Step 6: Final answer
    x = 3,465.87

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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.