Home / 2,129.34-2,939.94-1,737.30

Finding the Fourth Proportional to 2,129.34, 2,939.94 and 1,737.30

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Solution

The fourth proportional to 2,129.34, 2,939.94 and 1,737.30 is: 2,398.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.34 : 2,939.94 = 1,737.30 : x
  2. Step 2: Convert to fraction form
    2,129.34/2,939.94 = 1,737.30/x
  3. Step 3: Cross multiply
    2,129.34x = 2,939.94 × 1,737.30
  4. Step 4: Simplify right side
    2,129.34x = 5,107,557.76
  5. Step 5: Solve for x
    x = 5,107,557.76/2,129.34
  6. Step 6: Final answer
    x = 2,398.66

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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.