Home / 3,612.04-4,985.26-2,120.82

Finding the Fourth Proportional to 3,612.04, 4,985.26 and 2,120.82

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Solution

The fourth proportional to 3,612.04, 4,985.26 and 2,120.82 is: 2,927.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.04 : 4,985.26 = 2,120.82 : x
  2. Step 2: Convert to fraction form
    3,612.04/4,985.26 = 2,120.82/x
  3. Step 3: Cross multiply
    3,612.04x = 4,985.26 × 2,120.82
  4. Step 4: Simplify right side
    3,612.04x = 10,572,839.13
  5. Step 5: Solve for x
    x = 10,572,839.13/3,612.04
  6. Step 6: Final answer
    x = 2,927.11

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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.