Home / 7,110.10-10,665.80-1,845.10

Finding the Fourth Proportional to 7,110.10, 10,665.80 and 1,845.10

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Solution

The fourth proportional to 7,110.10, 10,665.80 and 1,845.10 is: 2,767.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.10 : 10,665.80 = 1,845.10 : x
  2. Step 2: Convert to fraction form
    7,110.10/10,665.80 = 1,845.10/x
  3. Step 3: Cross multiply
    7,110.10x = 10,665.80 × 1,845.10
  4. Step 4: Simplify right side
    7,110.10x = 19,679,467.58
  5. Step 5: Solve for x
    x = 19,679,467.58/7,110.10
  6. Step 6: Final answer
    x = 2,767.82

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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.