Home / 7,181.60-10,772.40-4,263.20

Finding the Fourth Proportional to 7,181.60, 10,772.40 and 4,263.20

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Solution

The fourth proportional to 7,181.60, 10,772.40 and 4,263.20 is: 6,394.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.60 : 10,772.40 = 4,263.20 : x
  2. Step 2: Convert to fraction form
    7,181.60/10,772.40 = 4,263.20/x
  3. Step 3: Cross multiply
    7,181.60x = 10,772.40 × 4,263.20
  4. Step 4: Simplify right side
    7,181.60x = 45,924,895.68
  5. Step 5: Solve for x
    x = 45,924,895.68/7,181.60
  6. Step 6: Final answer
    x = 6,394.80

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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.