Home / 5,409.63-8,108.94-3,436.71

Finding the Fourth Proportional to 5,409.63, 8,108.94 and 3,436.71

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Solution

The fourth proportional to 5,409.63, 8,108.94 and 3,436.71 is: 5,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.63 : 8,108.94 = 3,436.71 : x
  2. Step 2: Convert to fraction form
    5,409.63/8,108.94 = 3,436.71/x
  3. Step 3: Cross multiply
    5,409.63x = 8,108.94 × 3,436.71
  4. Step 4: Simplify right side
    5,409.63x = 27,868,075.19
  5. Step 5: Solve for x
    x = 27,868,075.19/5,409.63
  6. Step 6: Final answer
    x = 5,151.57

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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.