Home / 2,187.34-2,998.18-2,156.59

Finding the Fourth Proportional to 2,187.34, 2,998.18 and 2,156.59

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Solution

The fourth proportional to 2,187.34, 2,998.18 and 2,156.59 is: 2,956.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.34 : 2,998.18 = 2,156.59 : x
  2. Step 2: Convert to fraction form
    2,187.34/2,998.18 = 2,156.59/x
  3. Step 3: Cross multiply
    2,187.34x = 2,998.18 × 2,156.59
  4. Step 4: Simplify right side
    2,187.34x = 6,465,845.01
  5. Step 5: Solve for x
    x = 6,465,845.01/2,187.34
  6. Step 6: Final answer
    x = 2,956.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.