Home / 3,113.60-4,296.80-1,716.48

Finding the Fourth Proportional to 3,113.60, 4,296.80 and 1,716.48

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Solution

The fourth proportional to 3,113.60, 4,296.80 and 1,716.48 is: 2,368.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.60 : 4,296.80 = 1,716.48 : x
  2. Step 2: Convert to fraction form
    3,113.60/4,296.80 = 1,716.48/x
  3. Step 3: Cross multiply
    3,113.60x = 4,296.80 × 1,716.48
  4. Step 4: Simplify right side
    3,113.60x = 7,375,371.26
  5. Step 5: Solve for x
    x = 7,375,371.26/3,113.60
  6. Step 6: Final answer
    x = 2,368.76

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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.