Home / 3,459.60-5,188.86-1,267.20

Finding the Fourth Proportional to 3,459.60, 5,188.86 and 1,267.20

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Solution

The fourth proportional to 3,459.60, 5,188.86 and 1,267.20 is: 1,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.60 : 5,188.86 = 1,267.20 : x
  2. Step 2: Convert to fraction form
    3,459.60/5,188.86 = 1,267.20/x
  3. Step 3: Cross multiply
    3,459.60x = 5,188.86 × 1,267.20
  4. Step 4: Simplify right side
    3,459.60x = 6,575,323.39
  5. Step 5: Solve for x
    x = 6,575,323.39/3,459.60
  6. Step 6: Final answer
    x = 1,900.60

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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.