Home / 2,813.60-4,221.60-1,170.51

Finding the Fourth Proportional to 2,813.60, 4,221.60 and 1,170.51

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Solution

The fourth proportional to 2,813.60, 4,221.60 and 1,170.51 is: 1,756.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.60 : 4,221.60 = 1,170.51 : x
  2. Step 2: Convert to fraction form
    2,813.60/4,221.60 = 1,170.51/x
  3. Step 3: Cross multiply
    2,813.60x = 4,221.60 × 1,170.51
  4. Step 4: Simplify right side
    2,813.60x = 4,941,425.02
  5. Step 5: Solve for x
    x = 4,941,425.02/2,813.60
  6. Step 6: Final answer
    x = 1,756.26

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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.