Home / 3,122.22-4,308.71-1,705.93

Finding the Fourth Proportional to 3,122.22, 4,308.71 and 1,705.93

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Solution

The fourth proportional to 3,122.22, 4,308.71 and 1,705.93 is: 2,354.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.22 : 4,308.71 = 1,705.93 : x
  2. Step 2: Convert to fraction form
    3,122.22/4,308.71 = 1,705.93/x
  3. Step 3: Cross multiply
    3,122.22x = 4,308.71 × 1,705.93
  4. Step 4: Simplify right side
    3,122.22x = 7,350,354.51
  5. Step 5: Solve for x
    x = 7,350,354.51/3,122.22
  6. Step 6: Final answer
    x = 2,354.21

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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.