Home / 5,140.35-7,710.73-1,630.42

Finding the Fourth Proportional to 5,140.35, 7,710.73 and 1,630.42

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Solution

The fourth proportional to 5,140.35, 7,710.73 and 1,630.42 is: 2,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.35 : 7,710.73 = 1,630.42 : x
  2. Step 2: Convert to fraction form
    5,140.35/7,710.73 = 1,630.42/x
  3. Step 3: Cross multiply
    5,140.35x = 7,710.73 × 1,630.42
  4. Step 4: Simplify right side
    5,140.35x = 12,571,705.05
  5. Step 5: Solve for x
    x = 12,571,705.05/5,140.35
  6. Step 6: Final answer
    x = 2,445.69

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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.