Home / 6,085.36-9,121.38-4,006.78

Finding the Fourth Proportional to 6,085.36, 9,121.38 and 4,006.78

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Solution

The fourth proportional to 6,085.36, 9,121.38 and 4,006.78 is: 6,005.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,085.36 : 9,121.38 = 4,006.78 : x
  2. Step 2: Convert to fraction form
    6,085.36/9,121.38 = 4,006.78/x
  3. Step 3: Cross multiply
    6,085.36x = 9,121.38 × 4,006.78
  4. Step 4: Simplify right side
    6,085.36x = 36,547,362.96
  5. Step 5: Solve for x
    x = 36,547,362.96/6,085.36
  6. Step 6: Final answer
    x = 6,005.78

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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.