Home / 4,585.60-6,885.60-3,131.20

Finding the Fourth Proportional to 4,585.60, 6,885.60 and 3,131.20

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Solution

The fourth proportional to 4,585.60, 6,885.60 and 3,131.20 is: 4,701.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,585.60 : 6,885.60 = 3,131.20 : x
  2. Step 2: Convert to fraction form
    4,585.60/6,885.60 = 3,131.20/x
  3. Step 3: Cross multiply
    4,585.60x = 6,885.60 × 3,131.20
  4. Step 4: Simplify right side
    4,585.60x = 21,560,190.72
  5. Step 5: Solve for x
    x = 21,560,190.72/4,585.60
  6. Step 6: Final answer
    x = 4,701.72

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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.