Home / 7,110.83-10,665.97-3,990.17

Finding the Fourth Proportional to 7,110.83, 10,665.97 and 3,990.17

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Solution

The fourth proportional to 7,110.83, 10,665.97 and 3,990.17 is: 5,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.83 : 10,665.97 = 3,990.17 : x
  2. Step 2: Convert to fraction form
    7,110.83/10,665.97 = 3,990.17/x
  3. Step 3: Cross multiply
    7,110.83x = 10,665.97 × 3,990.17
  4. Step 4: Simplify right side
    7,110.83x = 42,559,033.51
  5. Step 5: Solve for x
    x = 42,559,033.51/7,110.83
  6. Step 6: Final answer
    x = 5,985.10

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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.