Home / 2,624.40-3,940.65-1,806.30

Finding the Fourth Proportional to 2,624.40, 3,940.65 and 1,806.30

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Solution

The fourth proportional to 2,624.40, 3,940.65 and 1,806.30 is: 2,712.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.40 : 3,940.65 = 1,806.30 : x
  2. Step 2: Convert to fraction form
    2,624.40/3,940.65 = 1,806.30/x
  3. Step 3: Cross multiply
    2,624.40x = 3,940.65 × 1,806.30
  4. Step 4: Simplify right side
    2,624.40x = 7,117,996.10
  5. Step 5: Solve for x
    x = 7,117,996.10/2,624.40
  6. Step 6: Final answer
    x = 2,712.24

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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.