Home / 3,485.60-4,808.95-1,992.47

Finding the Fourth Proportional to 3,485.60, 4,808.95 and 1,992.47

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Solution

The fourth proportional to 3,485.60, 4,808.95 and 1,992.47 is: 2,748.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.60 : 4,808.95 = 1,992.47 : x
  2. Step 2: Convert to fraction form
    3,485.60/4,808.95 = 1,992.47/x
  3. Step 3: Cross multiply
    3,485.60x = 4,808.95 × 1,992.47
  4. Step 4: Simplify right side
    3,485.60x = 9,581,659.58
  5. Step 5: Solve for x
    x = 9,581,659.58/3,485.60
  6. Step 6: Final answer
    x = 2,748.92

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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.