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Finding the Fourth Proportional to 3,600.86, 4,970.58 and 2,815.16

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Solution

The fourth proportional to 3,600.86, 4,970.58 and 2,815.16 is: 3,886.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.86 : 4,970.58 = 2,815.16 : x
  2. Step 2: Convert to fraction form
    3,600.86/4,970.58 = 2,815.16/x
  3. Step 3: Cross multiply
    3,600.86x = 4,970.58 × 2,815.16
  4. Step 4: Simplify right side
    3,600.86x = 13,992,977.99
  5. Step 5: Solve for x
    x = 13,992,977.99/3,600.86
  6. Step 6: Final answer
    x = 3,886.01

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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.