Home / 3,330.02-4,991.78-2,159.30

Finding the Fourth Proportional to 3,330.02, 4,991.78 and 2,159.30

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Solution

The fourth proportional to 3,330.02, 4,991.78 and 2,159.30 is: 3,236.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.02 : 4,991.78 = 2,159.30 : x
  2. Step 2: Convert to fraction form
    3,330.02/4,991.78 = 2,159.30/x
  3. Step 3: Cross multiply
    3,330.02x = 4,991.78 × 2,159.30
  4. Step 4: Simplify right side
    3,330.02x = 10,778,750.55
  5. Step 5: Solve for x
    x = 10,778,750.55/3,330.02
  6. Step 6: Final answer
    x = 3,236.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.