Home / 5,140.48-7,710.99-1,630.75

Finding the Fourth Proportional to 5,140.48, 7,710.99 and 1,630.75

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Solution

The fourth proportional to 5,140.48, 7,710.99 and 1,630.75 is: 2,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.48 : 7,710.99 = 1,630.75 : x
  2. Step 2: Convert to fraction form
    5,140.48/7,710.99 = 1,630.75/x
  3. Step 3: Cross multiply
    5,140.48x = 7,710.99 × 1,630.75
  4. Step 4: Simplify right side
    5,140.48x = 12,574,680.74
  5. Step 5: Solve for x
    x = 12,574,680.74/5,140.48
  6. Step 6: Final answer
    x = 2,446.21

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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.