Home / 3,330.63-4,602.38-2,887.11

Finding the Fourth Proportional to 3,330.63, 4,602.38 and 2,887.11

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Solution

The fourth proportional to 3,330.63, 4,602.38 and 2,887.11 is: 3,989.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.63 : 4,602.38 = 2,887.11 : x
  2. Step 2: Convert to fraction form
    3,330.63/4,602.38 = 2,887.11/x
  3. Step 3: Cross multiply
    3,330.63x = 4,602.38 × 2,887.11
  4. Step 4: Simplify right side
    3,330.63x = 13,287,562.89
  5. Step 5: Solve for x
    x = 13,287,562.89/3,330.63
  6. Step 6: Final answer
    x = 3,989.50

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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.