Home / 5,145.90-7,101.77-4,305.12

Finding the Fourth Proportional to 5,145.90, 7,101.77 and 4,305.12

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Solution

The fourth proportional to 5,145.90, 7,101.77 and 4,305.12 is: 5,941.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.90 : 7,101.77 = 4,305.12 : x
  2. Step 2: Convert to fraction form
    5,145.90/7,101.77 = 4,305.12/x
  3. Step 3: Cross multiply
    5,145.90x = 7,101.77 × 4,305.12
  4. Step 4: Simplify right side
    5,145.90x = 30,573,972.06
  5. Step 5: Solve for x
    x = 30,573,972.06/5,145.90
  6. Step 6: Final answer
    x = 5,941.42

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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.