Home / 2,799.51-4,200.07-1,155.21

Finding the Fourth Proportional to 2,799.51, 4,200.07 and 1,155.21

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Solution

The fourth proportional to 2,799.51, 4,200.07 and 1,155.21 is: 1,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.51 : 4,200.07 = 1,155.21 : x
  2. Step 2: Convert to fraction form
    2,799.51/4,200.07 = 1,155.21/x
  3. Step 3: Cross multiply
    2,799.51x = 4,200.07 × 1,155.21
  4. Step 4: Simplify right side
    2,799.51x = 4,851,962.86
  5. Step 5: Solve for x
    x = 4,851,962.86/2,799.51
  6. Step 6: Final answer
    x = 1,733.15

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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.