Home / 1,811.32-2,500.01-1,103.39

Finding the Fourth Proportional to 1,811.32, 2,500.01 and 1,103.39

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Solution

The fourth proportional to 1,811.32, 2,500.01 and 1,103.39 is: 1,522.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.32 : 2,500.01 = 1,103.39 : x
  2. Step 2: Convert to fraction form
    1,811.32/2,500.01 = 1,103.39/x
  3. Step 3: Cross multiply
    1,811.32x = 2,500.01 × 1,103.39
  4. Step 4: Simplify right side
    1,811.32x = 2,758,495.59
  5. Step 5: Solve for x
    x = 2,758,495.59/1,811.32
  6. Step 6: Final answer
    x = 1,522.92

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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.