Home / 3,129.90-4,691.46-2,035.05

Finding the Fourth Proportional to 3,129.90, 4,691.46 and 2,035.05

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Solution

The fourth proportional to 3,129.90, 4,691.46 and 2,035.05 is: 3,050.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.90 : 4,691.46 = 2,035.05 : x
  2. Step 2: Convert to fraction form
    3,129.90/4,691.46 = 2,035.05/x
  3. Step 3: Cross multiply
    3,129.90x = 4,691.46 × 2,035.05
  4. Step 4: Simplify right side
    3,129.90x = 9,547,355.67
  5. Step 5: Solve for x
    x = 9,547,355.67/3,129.90
  6. Step 6: Final answer
    x = 3,050.37

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1.5x scale

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.