Home / 5,409.71-8,114.57-2,124.35

Finding the Fourth Proportional to 5,409.71, 8,114.57 and 2,124.35

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Solution

The fourth proportional to 5,409.71, 8,114.57 and 2,124.35 is: 3,186.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.71 : 8,114.57 = 2,124.35 : x
  2. Step 2: Convert to fraction form
    5,409.71/8,114.57 = 2,124.35/x
  3. Step 3: Cross multiply
    5,409.71x = 8,114.57 × 2,124.35
  4. Step 4: Simplify right side
    5,409.71x = 17,238,186.78
  5. Step 5: Solve for x
    x = 17,238,186.78/5,409.71
  6. Step 6: Final answer
    x = 3,186.53

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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.