Home / 3,688.80-5,533.58-2,130.55

Finding the Fourth Proportional to 3,688.80, 5,533.58 and 2,130.55

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Solution

The fourth proportional to 3,688.80, 5,533.58 and 2,130.55 is: 3,196.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.80 : 5,533.58 = 2,130.55 : x
  2. Step 2: Convert to fraction form
    3,688.80/5,533.58 = 2,130.55/x
  3. Step 3: Cross multiply
    3,688.80x = 5,533.58 × 2,130.55
  4. Step 4: Simplify right side
    3,688.80x = 11,789,568.87
  5. Step 5: Solve for x
    x = 11,789,568.87/3,688.80
  6. Step 6: Final answer
    x = 3,196.04

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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.