Home / 2,556.30-3,834.45-914.70

Finding the Fourth Proportional to 2,556.30, 3,834.45 and 914.70

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Solution

The fourth proportional to 2,556.30, 3,834.45 and 914.70 is: 1,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.30 : 3,834.45 = 914.70 : x
  2. Step 2: Convert to fraction form
    2,556.30/3,834.45 = 914.70/x
  3. Step 3: Cross multiply
    2,556.30x = 3,834.45 × 914.70
  4. Step 4: Simplify right side
    2,556.30x = 3,507,371.42
  5. Step 5: Solve for x
    x = 3,507,371.42/2,556.30
  6. Step 6: Final answer
    x = 1,372.05

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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.