Home / 2,130.96-3,192.26-1,398.30

Finding the Fourth Proportional to 2,130.96, 3,192.26 and 1,398.30

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Solution

The fourth proportional to 2,130.96, 3,192.26 and 1,398.30 is: 2,094.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.96 : 3,192.26 = 1,398.30 : x
  2. Step 2: Convert to fraction form
    2,130.96/3,192.26 = 1,398.30/x
  3. Step 3: Cross multiply
    2,130.96x = 3,192.26 × 1,398.30
  4. Step 4: Simplify right side
    2,130.96x = 4,463,737.16
  5. Step 5: Solve for x
    x = 4,463,737.16/2,130.96
  6. Step 6: Final answer
    x = 2,094.71

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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.