Home / 2,898.89-3,997.45-2,480.63

Finding the Fourth Proportional to 2,898.89, 3,997.45 and 2,480.63

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Solution

The fourth proportional to 2,898.89, 3,997.45 and 2,480.63 is: 3,420.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.89 : 3,997.45 = 2,480.63 : x
  2. Step 2: Convert to fraction form
    2,898.89/3,997.45 = 2,480.63/x
  3. Step 3: Cross multiply
    2,898.89x = 3,997.45 × 2,480.63
  4. Step 4: Simplify right side
    2,898.89x = 9,916,177.51
  5. Step 5: Solve for x
    x = 9,916,177.51/2,898.89
  6. Step 6: Final answer
    x = 3,420.68

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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.