Home / 3,612.21-4,985.15-2,040.60

Finding the Fourth Proportional to 3,612.21, 4,985.15 and 2,040.60

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Solution

The fourth proportional to 3,612.21, 4,985.15 and 2,040.60 is: 2,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.21 : 4,985.15 = 2,040.60 : x
  2. Step 2: Convert to fraction form
    3,612.21/4,985.15 = 2,040.60/x
  3. Step 3: Cross multiply
    3,612.21x = 4,985.15 × 2,040.60
  4. Step 4: Simplify right side
    3,612.21x = 10,172,686.89
  5. Step 5: Solve for x
    x = 10,172,686.89/3,612.21
  6. Step 6: Final answer
    x = 2,816.19

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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.