Home / 1,602.14-2,211.96-1,228.42

Finding the Fourth Proportional to 1,602.14, 2,211.96 and 1,228.42

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Solution

The fourth proportional to 1,602.14, 2,211.96 and 1,228.42 is: 1,695.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,602.14 : 2,211.96 = 1,228.42 : x
  2. Step 2: Convert to fraction form
    1,602.14/2,211.96 = 1,228.42/x
  3. Step 3: Cross multiply
    1,602.14x = 2,211.96 × 1,228.42
  4. Step 4: Simplify right side
    1,602.14x = 2,717,215.90
  5. Step 5: Solve for x
    x = 2,717,215.90/1,602.14
  6. Step 6: Final answer
    x = 1,695.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.