Home / 3,330.90-4,984.20-3,039.30

Finding the Fourth Proportional to 3,330.90, 4,984.20 and 3,039.30

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Solution

The fourth proportional to 3,330.90, 4,984.20 and 3,039.30 is: 4,547.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.90 : 4,984.20 = 3,039.30 : x
  2. Step 2: Convert to fraction form
    3,330.90/4,984.20 = 3,039.30/x
  3. Step 3: Cross multiply
    3,330.90x = 4,984.20 × 3,039.30
  4. Step 4: Simplify right side
    3,330.90x = 15,148,479.06
  5. Step 5: Solve for x
    x = 15,148,479.06/3,330.90
  6. Step 6: Final answer
    x = 4,547.86

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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.