Home / 3,707.76-5,114.16-2,645.40

Finding the Fourth Proportional to 3,707.76, 5,114.16 and 2,645.40

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Solution

The fourth proportional to 3,707.76, 5,114.16 and 2,645.40 is: 3,648.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.76 : 5,114.16 = 2,645.40 : x
  2. Step 2: Convert to fraction form
    3,707.76/5,114.16 = 2,645.40/x
  3. Step 3: Cross multiply
    3,707.76x = 5,114.16 × 2,645.40
  4. Step 4: Simplify right side
    3,707.76x = 13,528,998.86
  5. Step 5: Solve for x
    x = 13,528,998.86/3,707.76
  6. Step 6: Final answer
    x = 3,648.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.