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Finding the Fourth Proportional to 2,580.54, 3,561.16 and 1,401.62

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Solution

The fourth proportional to 2,580.54, 3,561.16 and 1,401.62 is: 1,934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.54 : 3,561.16 = 1,401.62 : x
  2. Step 2: Convert to fraction form
    2,580.54/3,561.16 = 1,401.62/x
  3. Step 3: Cross multiply
    2,580.54x = 3,561.16 × 1,401.62
  4. Step 4: Simplify right side
    2,580.54x = 4,991,393.08
  5. Step 5: Solve for x
    x = 4,991,393.08/2,580.54
  6. Step 6: Final answer
    x = 1,934.24

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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.