Home / 2,175.24-3,266.80-1,355.10

Finding the Fourth Proportional to 2,175.24, 3,266.80 and 1,355.10

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Solution

The fourth proportional to 2,175.24, 3,266.80 and 1,355.10 is: 2,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.24 : 3,266.80 = 1,355.10 : x
  2. Step 2: Convert to fraction form
    2,175.24/3,266.80 = 1,355.10/x
  3. Step 3: Cross multiply
    2,175.24x = 3,266.80 × 1,355.10
  4. Step 4: Simplify right side
    2,175.24x = 4,426,840.68
  5. Step 5: Solve for x
    x = 4,426,840.68/2,175.24
  6. Step 6: Final answer
    x = 2,035.10

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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.