Home / 3,410.40-4,707.48-2,151.60

Finding the Fourth Proportional to 3,410.40, 4,707.48 and 2,151.60

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Solution

The fourth proportional to 3,410.40, 4,707.48 and 2,151.60 is: 2,969.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.40 : 4,707.48 = 2,151.60 : x
  2. Step 2: Convert to fraction form
    3,410.40/4,707.48 = 2,151.60/x
  3. Step 3: Cross multiply
    3,410.40x = 4,707.48 × 2,151.60
  4. Step 4: Simplify right side
    3,410.40x = 10,128,613.97
  5. Step 5: Solve for x
    x = 10,128,613.97/3,410.40
  6. Step 6: Final answer
    x = 2,969.92

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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.