Home / 3,321.45-4,984.89-1,590.07

Finding the Fourth Proportional to 3,321.45, 4,984.89 and 1,590.07

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Solution

The fourth proportional to 3,321.45, 4,984.89 and 1,590.07 is: 2,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.45 : 4,984.89 = 1,590.07 : x
  2. Step 2: Convert to fraction form
    3,321.45/4,984.89 = 1,590.07/x
  3. Step 3: Cross multiply
    3,321.45x = 4,984.89 × 1,590.07
  4. Step 4: Simplify right side
    3,321.45x = 7,926,324.04
  5. Step 5: Solve for x
    x = 7,926,324.04/3,321.45
  6. Step 6: Final answer
    x = 2,386.40

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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.