Home / 4,885.21-7,327.70-1,187.46

Finding the Fourth Proportional to 4,885.21, 7,327.70 and 1,187.46

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Solution

The fourth proportional to 4,885.21, 7,327.70 and 1,187.46 is: 1,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.21 : 7,327.70 = 1,187.46 : x
  2. Step 2: Convert to fraction form
    4,885.21/7,327.70 = 1,187.46/x
  3. Step 3: Cross multiply
    4,885.21x = 7,327.70 × 1,187.46
  4. Step 4: Simplify right side
    4,885.21x = 8,701,353.61
  5. Step 5: Solve for x
    x = 8,701,353.61/4,885.21
  6. Step 6: Final answer
    x = 1,781.16

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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.