Home / 5,208.95-7,188.52-2,851.09

Finding the Fourth Proportional to 5,208.95, 7,188.52 and 2,851.09

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Solution

The fourth proportional to 5,208.95, 7,188.52 and 2,851.09 is: 3,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.95 : 7,188.52 = 2,851.09 : x
  2. Step 2: Convert to fraction form
    5,208.95/7,188.52 = 2,851.09/x
  3. Step 3: Cross multiply
    5,208.95x = 7,188.52 × 2,851.09
  4. Step 4: Simplify right side
    5,208.95x = 20,495,125.97
  5. Step 5: Solve for x
    x = 20,495,125.97/5,208.95
  6. Step 6: Final answer
    x = 3,934.60

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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.