Home / 3,140.90-4,705.21-1,750.04

Finding the Fourth Proportional to 3,140.90, 4,705.21 and 1,750.04

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Solution

The fourth proportional to 3,140.90, 4,705.21 and 1,750.04 is: 2,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.90 : 4,705.21 = 1,750.04 : x
  2. Step 2: Convert to fraction form
    3,140.90/4,705.21 = 1,750.04/x
  3. Step 3: Cross multiply
    3,140.90x = 4,705.21 × 1,750.04
  4. Step 4: Simplify right side
    3,140.90x = 8,234,302.01
  5. Step 5: Solve for x
    x = 8,234,302.01/3,140.90
  6. Step 6: Final answer
    x = 2,621.64

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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.