Home / 5,411.55-7,474.09-3,640.08

Finding the Fourth Proportional to 5,411.55, 7,474.09 and 3,640.08

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Solution

The fourth proportional to 5,411.55, 7,474.09 and 3,640.08 is: 5,027.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.55 : 7,474.09 = 3,640.08 : x
  2. Step 2: Convert to fraction form
    5,411.55/7,474.09 = 3,640.08/x
  3. Step 3: Cross multiply
    5,411.55x = 7,474.09 × 3,640.08
  4. Step 4: Simplify right side
    5,411.55x = 27,206,285.53
  5. Step 5: Solve for x
    x = 27,206,285.53/5,411.55
  6. Step 6: Final answer
    x = 5,027.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.