Home / 2,207.02-3,308.84-745.78

Finding the Fourth Proportional to 2,207.02, 3,308.84 and 745.78

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Solution

The fourth proportional to 2,207.02, 3,308.84 and 745.78 is: 1,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.02 : 3,308.84 = 745.78 : x
  2. Step 2: Convert to fraction form
    2,207.02/3,308.84 = 745.78/x
  3. Step 3: Cross multiply
    2,207.02x = 3,308.84 × 745.78
  4. Step 4: Simplify right side
    2,207.02x = 2,467,666.70
  5. Step 5: Solve for x
    x = 2,467,666.70/2,207.02
  6. Step 6: Final answer
    x = 1,118.10

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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.