Home / 6,887.03-10,331.82-3,186.81

Finding the Fourth Proportional to 6,887.03, 10,331.82 and 3,186.81

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Solution

The fourth proportional to 6,887.03, 10,331.82 and 3,186.81 is: 4,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.03 : 10,331.82 = 3,186.81 : x
  2. Step 2: Convert to fraction form
    6,887.03/10,331.82 = 3,186.81/x
  3. Step 3: Cross multiply
    6,887.03x = 10,331.82 × 3,186.81
  4. Step 4: Simplify right side
    6,887.03x = 32,925,547.29
  5. Step 5: Solve for x
    x = 32,925,547.29/6,887.03
  6. Step 6: Final answer
    x = 4,780.81

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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.