Home / 2,529.55-3,494.10-1,939.06

Finding the Fourth Proportional to 2,529.55, 3,494.10 and 1,939.06

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Solution

The fourth proportional to 2,529.55, 3,494.10 and 1,939.06 is: 2,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.55 : 3,494.10 = 1,939.06 : x
  2. Step 2: Convert to fraction form
    2,529.55/3,494.10 = 1,939.06/x
  3. Step 3: Cross multiply
    2,529.55x = 3,494.10 × 1,939.06
  4. Step 4: Simplify right side
    2,529.55x = 6,775,269.55
  5. Step 5: Solve for x
    x = 6,775,269.55/2,529.55
  6. Step 6: Final answer
    x = 2,678.45

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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.