Home / 3,612.99-4,985.08-2,120.83

Finding the Fourth Proportional to 3,612.99, 4,985.08 and 2,120.83

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Solution

The fourth proportional to 3,612.99, 4,985.08 and 2,120.83 is: 2,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.99 : 4,985.08 = 2,120.83 : x
  2. Step 2: Convert to fraction form
    3,612.99/4,985.08 = 2,120.83/x
  3. Step 3: Cross multiply
    3,612.99x = 4,985.08 × 2,120.83
  4. Step 4: Simplify right side
    3,612.99x = 10,572,507.22
  5. Step 5: Solve for x
    x = 10,572,507.22/3,612.99
  6. Step 6: Final answer
    x = 2,926.25

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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.