Home / 3,390.08-4,677.60-1,992.32

Finding the Fourth Proportional to 3,390.08, 4,677.60 and 1,992.32

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Solution

The fourth proportional to 3,390.08, 4,677.60 and 1,992.32 is: 2,748.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.08 : 4,677.60 = 1,992.32 : x
  2. Step 2: Convert to fraction form
    3,390.08/4,677.60 = 1,992.32/x
  3. Step 3: Cross multiply
    3,390.08x = 4,677.60 × 1,992.32
  4. Step 4: Simplify right side
    3,390.08x = 9,319,276.03
  5. Step 5: Solve for x
    x = 9,319,276.03/3,390.08
  6. Step 6: Final answer
    x = 2,748.98

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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.