Home / 3,058.08-4,220.28-2,011.20

Finding the Fourth Proportional to 3,058.08, 4,220.28 and 2,011.20

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Solution

The fourth proportional to 3,058.08, 4,220.28 and 2,011.20 is: 2,775.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.08 : 4,220.28 = 2,011.20 : x
  2. Step 2: Convert to fraction form
    3,058.08/4,220.28 = 2,011.20/x
  3. Step 3: Cross multiply
    3,058.08x = 4,220.28 × 2,011.20
  4. Step 4: Simplify right side
    3,058.08x = 8,487,827.14
  5. Step 5: Solve for x
    x = 8,487,827.14/3,058.08
  6. Step 6: Final answer
    x = 2,775.54

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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.