Home / 2,988.89-4,125.78-2,567.54

Finding the Fourth Proportional to 2,988.89, 4,125.78 and 2,567.54

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Solution

The fourth proportional to 2,988.89, 4,125.78 and 2,567.54 is: 3,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.89 : 4,125.78 = 2,567.54 : x
  2. Step 2: Convert to fraction form
    2,988.89/4,125.78 = 2,567.54/x
  3. Step 3: Cross multiply
    2,988.89x = 4,125.78 × 2,567.54
  4. Step 4: Simplify right side
    2,988.89x = 10,593,115.50
  5. Step 5: Solve for x
    x = 10,593,115.50/2,988.89
  6. Step 6: Final answer
    x = 3,544.17

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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.