Home / 2,145.35-3,218.03-1,569.35

Finding the Fourth Proportional to 2,145.35, 3,218.03 and 1,569.35

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Solution

The fourth proportional to 2,145.35, 3,218.03 and 1,569.35 is: 2,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.35 : 3,218.03 = 1,569.35 : x
  2. Step 2: Convert to fraction form
    2,145.35/3,218.03 = 1,569.35/x
  3. Step 3: Cross multiply
    2,145.35x = 3,218.03 × 1,569.35
  4. Step 4: Simplify right side
    2,145.35x = 5,050,207.53
  5. Step 5: Solve for x
    x = 5,050,207.53/2,145.35
  6. Step 6: Final answer
    x = 2,354.03

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Similar ratio
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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.