Home / 3,330.45-4,989.60-2,030.40

Finding the Fourth Proportional to 3,330.45, 4,989.60 and 2,030.40

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Solution

The fourth proportional to 3,330.45, 4,989.60 and 2,030.40 is: 3,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.45 : 4,989.60 = 2,030.40 : x
  2. Step 2: Convert to fraction form
    3,330.45/4,989.60 = 2,030.40/x
  3. Step 3: Cross multiply
    3,330.45x = 4,989.60 × 2,030.40
  4. Step 4: Simplify right side
    3,330.45x = 10,130,883.84
  5. Step 5: Solve for x
    x = 10,130,883.84/3,330.45
  6. Step 6: Final answer
    x = 3,041.90

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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.