Home / 6,840.09-10,259.35-2,160.10

Finding the Fourth Proportional to 6,840.09, 10,259.35 and 2,160.10

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Solution

The fourth proportional to 6,840.09, 10,259.35 and 2,160.10 is: 3,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,840.09 : 10,259.35 = 2,160.10 : x
  2. Step 2: Convert to fraction form
    6,840.09/10,259.35 = 2,160.10/x
  3. Step 3: Cross multiply
    6,840.09x = 10,259.35 × 2,160.10
  4. Step 4: Simplify right side
    6,840.09x = 22,161,221.94
  5. Step 5: Solve for x
    x = 22,161,221.94/6,840.09
  6. Step 6: Final answer
    x = 3,239.90

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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.