Home / 3,237.60-4,861.28-2,586.40

Finding the Fourth Proportional to 3,237.60, 4,861.28 and 2,586.40

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Solution

The fourth proportional to 3,237.60, 4,861.28 and 2,586.40 is: 3,883.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,237.60 : 4,861.28 = 2,586.40 : x
  2. Step 2: Convert to fraction form
    3,237.60/4,861.28 = 2,586.40/x
  3. Step 3: Cross multiply
    3,237.60x = 4,861.28 × 2,586.40
  4. Step 4: Simplify right side
    3,237.60x = 12,573,214.59
  5. Step 5: Solve for x
    x = 12,573,214.59/3,237.60
  6. Step 6: Final answer
    x = 3,883.50

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Half scale
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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.