Home / 2,209.08-3,289.41-2,130.24

Finding the Fourth Proportional to 2,209.08, 3,289.41 and 2,130.24

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Solution

The fourth proportional to 2,209.08, 3,289.41 and 2,130.24 is: 3,172.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.08 : 3,289.41 = 2,130.24 : x
  2. Step 2: Convert to fraction form
    2,209.08/3,289.41 = 2,130.24/x
  3. Step 3: Cross multiply
    2,209.08x = 3,289.41 × 2,130.24
  4. Step 4: Simplify right side
    2,209.08x = 7,007,232.76
  5. Step 5: Solve for x
    x = 7,007,232.76/2,209.08
  6. Step 6: Final answer
    x = 3,172.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.