Home / 2,125.53-3,190.39-1,395.63

Finding the Fourth Proportional to 2,125.53, 3,190.39 and 1,395.63

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Solution

The fourth proportional to 2,125.53, 3,190.39 and 1,395.63 is: 2,094.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.53 : 3,190.39 = 1,395.63 : x
  2. Step 2: Convert to fraction form
    2,125.53/3,190.39 = 1,395.63/x
  3. Step 3: Cross multiply
    2,125.53x = 3,190.39 × 1,395.63
  4. Step 4: Simplify right side
    2,125.53x = 4,452,600.51
  5. Step 5: Solve for x
    x = 4,452,600.51/2,125.53
  6. Step 6: Final answer
    x = 2,094.82

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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.