Home / 3,140.20-4,707.42-1,165.33

Finding the Fourth Proportional to 3,140.20, 4,707.42 and 1,165.33

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Solution

The fourth proportional to 3,140.20, 4,707.42 and 1,165.33 is: 1,746.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.20 : 4,707.42 = 1,165.33 : x
  2. Step 2: Convert to fraction form
    3,140.20/4,707.42 = 1,165.33/x
  3. Step 3: Cross multiply
    3,140.20x = 4,707.42 × 1,165.33
  4. Step 4: Simplify right side
    3,140.20x = 5,485,697.75
  5. Step 5: Solve for x
    x = 5,485,697.75/3,140.20
  6. Step 6: Final answer
    x = 1,746.93

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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.