Home / 5,409.63-8,114.49-2,123.05

Finding the Fourth Proportional to 5,409.63, 8,114.49 and 2,123.05

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Solution

The fourth proportional to 5,409.63, 8,114.49 and 2,123.05 is: 3,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.63 : 8,114.49 = 2,123.05 : x
  2. Step 2: Convert to fraction form
    5,409.63/8,114.49 = 2,123.05/x
  3. Step 3: Cross multiply
    5,409.63x = 8,114.49 × 2,123.05
  4. Step 4: Simplify right side
    5,409.63x = 17,227,467.99
  5. Step 5: Solve for x
    x = 17,227,467.99/5,409.63
  6. Step 6: Final answer
    x = 3,184.60

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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.