Home / 5,607.24-8,409.78-2,143.68

Finding the Fourth Proportional to 5,607.24, 8,409.78 and 2,143.68

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Solution

The fourth proportional to 5,607.24, 8,409.78 and 2,143.68 is: 3,215.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.24 : 8,409.78 = 2,143.68 : x
  2. Step 2: Convert to fraction form
    5,607.24/8,409.78 = 2,143.68/x
  3. Step 3: Cross multiply
    5,607.24x = 8,409.78 × 2,143.68
  4. Step 4: Simplify right side
    5,607.24x = 18,027,877.19
  5. Step 5: Solve for x
    x = 18,027,877.19/5,607.24
  6. Step 6: Final answer
    x = 3,215.11

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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.