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Finding the Fourth Proportional to 2,520.77, 3,762.09 and 2,455.16

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Solution

The fourth proportional to 2,520.77, 3,762.09 and 2,455.16 is: 3,664.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520.77 : 3,762.09 = 2,455.16 : x
  2. Step 2: Convert to fraction form
    2,520.77/3,762.09 = 2,455.16/x
  3. Step 3: Cross multiply
    2,520.77x = 3,762.09 × 2,455.16
  4. Step 4: Simplify right side
    2,520.77x = 9,236,514.07
  5. Step 5: Solve for x
    x = 9,236,514.07/2,520.77
  6. Step 6: Final answer
    x = 3,664.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.