Home / 2,580.20-3,560.68-1,401.28

Finding the Fourth Proportional to 2,580.20, 3,560.68 and 1,401.28

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Solution

The fourth proportional to 2,580.20, 3,560.68 and 1,401.28 is: 1,933.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.20 : 3,560.68 = 1,401.28 : x
  2. Step 2: Convert to fraction form
    2,580.20/3,560.68 = 1,401.28/x
  3. Step 3: Cross multiply
    2,580.20x = 3,560.68 × 1,401.28
  4. Step 4: Simplify right side
    2,580.20x = 4,989,502.52
  5. Step 5: Solve for x
    x = 4,989,502.52/2,580.20
  6. Step 6: Final answer
    x = 1,933.77

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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.