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Finding the Fourth Proportional to 2,135.51, 3,202.13 and 1,095.09

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Solution

The fourth proportional to 2,135.51, 3,202.13 and 1,095.09 is: 1,642.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.51 : 3,202.13 = 1,095.09 : x
  2. Step 2: Convert to fraction form
    2,135.51/3,202.13 = 1,095.09/x
  3. Step 3: Cross multiply
    2,135.51x = 3,202.13 × 1,095.09
  4. Step 4: Simplify right side
    2,135.51x = 3,506,638.29
  5. Step 5: Solve for x
    x = 3,506,638.29/2,135.51
  6. Step 6: Final answer
    x = 1,642.06

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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.