Home / 4,181.60-6,267.63-1,987.22

Finding the Fourth Proportional to 4,181.60, 6,267.63 and 1,987.22

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Solution

The fourth proportional to 4,181.60, 6,267.63 and 1,987.22 is: 2,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,181.60 : 6,267.63 = 1,987.22 : x
  2. Step 2: Convert to fraction form
    4,181.60/6,267.63 = 1,987.22/x
  3. Step 3: Cross multiply
    4,181.60x = 6,267.63 × 1,987.22
  4. Step 4: Simplify right side
    4,181.60x = 12,455,159.69
  5. Step 5: Solve for x
    x = 12,455,159.69/4,181.60
  6. Step 6: Final answer
    x = 2,978.56

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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.