Home / 1,812.14-2,500.08-1,103.69

Finding the Fourth Proportional to 1,812.14, 2,500.08 and 1,103.69

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Solution

The fourth proportional to 1,812.14, 2,500.08 and 1,103.69 is: 1,522.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.14 : 2,500.08 = 1,103.69 : x
  2. Step 2: Convert to fraction form
    1,812.14/2,500.08 = 1,103.69/x
  3. Step 3: Cross multiply
    1,812.14x = 2,500.08 × 1,103.69
  4. Step 4: Simplify right side
    1,812.14x = 2,759,300.79
  5. Step 5: Solve for x
    x = 2,759,300.79/1,812.14
  6. Step 6: Final answer
    x = 1,522.68

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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.