Home / 4,409.78-6,614.71-1,122.87

Finding the Fourth Proportional to 4,409.78, 6,614.71 and 1,122.87

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Solution

The fourth proportional to 4,409.78, 6,614.71 and 1,122.87 is: 1,684.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,409.78 : 6,614.71 = 1,122.87 : x
  2. Step 2: Convert to fraction form
    4,409.78/6,614.71 = 1,122.87/x
  3. Step 3: Cross multiply
    4,409.78x = 6,614.71 × 1,122.87
  4. Step 4: Simplify right side
    4,409.78x = 7,427,459.42
  5. Step 5: Solve for x
    x = 7,427,459.42/4,409.78
  6. Step 6: Final answer
    x = 1,684.32

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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.