Home / 2,126.63-3,190.66-740.32

Finding the Fourth Proportional to 2,126.63, 3,190.66 and 740.32

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Solution

The fourth proportional to 2,126.63, 3,190.66 and 740.32 is: 1,110.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.63 : 3,190.66 = 740.32 : x
  2. Step 2: Convert to fraction form
    2,126.63/3,190.66 = 740.32/x
  3. Step 3: Cross multiply
    2,126.63x = 3,190.66 × 740.32
  4. Step 4: Simplify right side
    2,126.63x = 2,362,099.58
  5. Step 5: Solve for x
    x = 2,362,099.58/2,126.63
  6. Step 6: Final answer
    x = 1,110.72

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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.