Home / 2,191.30-3,023.66-1,307.09

Finding the Fourth Proportional to 2,191.30, 3,023.66 and 1,307.09

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Solution

The fourth proportional to 2,191.30, 3,023.66 and 1,307.09 is: 1,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.30 : 3,023.66 = 1,307.09 : x
  2. Step 2: Convert to fraction form
    2,191.30/3,023.66 = 1,307.09/x
  3. Step 3: Cross multiply
    2,191.30x = 3,023.66 × 1,307.09
  4. Step 4: Simplify right side
    2,191.30x = 3,952,206.58
  5. Step 5: Solve for x
    x = 3,952,206.58/2,191.30
  6. Step 6: Final answer
    x = 1,803.59

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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.