Home / 2,823.60-4,235.40-2,564.40

Finding the Fourth Proportional to 2,823.60, 4,235.40 and 2,564.40

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Solution

The fourth proportional to 2,823.60, 4,235.40 and 2,564.40 is: 3,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.60 : 4,235.40 = 2,564.40 : x
  2. Step 2: Convert to fraction form
    2,823.60/4,235.40 = 2,564.40/x
  3. Step 3: Cross multiply
    2,823.60x = 4,235.40 × 2,564.40
  4. Step 4: Simplify right side
    2,823.60x = 10,861,259.76
  5. Step 5: Solve for x
    x = 10,861,259.76/2,823.60
  6. Step 6: Final answer
    x = 3,846.60

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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.