Home / 5,259.48-7,885.56-2,660.64

Finding the Fourth Proportional to 5,259.48, 7,885.56 and 2,660.64

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Solution

The fourth proportional to 5,259.48, 7,885.56 and 2,660.64 is: 3,989.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.48 : 7,885.56 = 2,660.64 : x
  2. Step 2: Convert to fraction form
    5,259.48/7,885.56 = 2,660.64/x
  3. Step 3: Cross multiply
    5,259.48x = 7,885.56 × 2,660.64
  4. Step 4: Simplify right side
    5,259.48x = 20,980,636.36
  5. Step 5: Solve for x
    x = 20,980,636.36/5,259.48
  6. Step 6: Final answer
    x = 3,989.11

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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.