Home / 2,184.15-3,270.15-2,123.40

Finding the Fourth Proportional to 2,184.15, 3,270.15 and 2,123.40

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Solution

The fourth proportional to 2,184.15, 3,270.15 and 2,123.40 is: 3,179.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.15 : 3,270.15 = 2,123.40 : x
  2. Step 2: Convert to fraction form
    2,184.15/3,270.15 = 2,123.40/x
  3. Step 3: Cross multiply
    2,184.15x = 3,270.15 × 2,123.40
  4. Step 4: Simplify right side
    2,184.15x = 6,943,836.51
  5. Step 5: Solve for x
    x = 6,943,836.51/2,184.15
  6. Step 6: Final answer
    x = 3,179.19

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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.