Home / 5,431.01-8,140.10-2,309.13

Finding the Fourth Proportional to 5,431.01, 8,140.10 and 2,309.13

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Solution

The fourth proportional to 5,431.01, 8,140.10 and 2,309.13 is: 3,460.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.01 : 8,140.10 = 2,309.13 : x
  2. Step 2: Convert to fraction form
    5,431.01/8,140.10 = 2,309.13/x
  3. Step 3: Cross multiply
    5,431.01x = 8,140.10 × 2,309.13
  4. Step 4: Simplify right side
    5,431.01x = 18,796,537.57
  5. Step 5: Solve for x
    x = 18,796,537.57/5,431.01
  6. Step 6: Final answer
    x = 3,460.97

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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.