Home / 5,149.51-7,106.35-2,911.60

Finding the Fourth Proportional to 5,149.51, 7,106.35 and 2,911.60

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Solution

The fourth proportional to 5,149.51, 7,106.35 and 2,911.60 is: 4,018.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.51 : 7,106.35 = 2,911.60 : x
  2. Step 2: Convert to fraction form
    5,149.51/7,106.35 = 2,911.60/x
  3. Step 3: Cross multiply
    5,149.51x = 7,106.35 × 2,911.60
  4. Step 4: Simplify right side
    5,149.51x = 20,690,848.66
  5. Step 5: Solve for x
    x = 20,690,848.66/5,149.51
  6. Step 6: Final answer
    x = 4,018.02

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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.