Home / 5,144.07-7,098.75-2,905.80

Finding the Fourth Proportional to 5,144.07, 7,098.75 and 2,905.80

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Solution

The fourth proportional to 5,144.07, 7,098.75 and 2,905.80 is: 4,009.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.07 : 7,098.75 = 2,905.80 : x
  2. Step 2: Convert to fraction form
    5,144.07/7,098.75 = 2,905.80/x
  3. Step 3: Cross multiply
    5,144.07x = 7,098.75 × 2,905.80
  4. Step 4: Simplify right side
    5,144.07x = 20,627,547.75
  5. Step 5: Solve for x
    x = 20,627,547.75/5,144.07
  6. Step 6: Final answer
    x = 4,009.97

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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.