Home / 2,864.78-4,294.22-1,220.48

Finding the Fourth Proportional to 2,864.78, 4,294.22 and 1,220.48

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Solution

The fourth proportional to 2,864.78, 4,294.22 and 1,220.48 is: 1,829.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.78 : 4,294.22 = 1,220.48 : x
  2. Step 2: Convert to fraction form
    2,864.78/4,294.22 = 1,220.48/x
  3. Step 3: Cross multiply
    2,864.78x = 4,294.22 × 1,220.48
  4. Step 4: Simplify right side
    2,864.78x = 5,241,009.63
  5. Step 5: Solve for x
    x = 5,241,009.63/2,864.78
  6. Step 6: Final answer
    x = 1,829.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.