Home / 4,272.56-6,407.40-2,190.32

Finding the Fourth Proportional to 4,272.56, 6,407.40 and 2,190.32

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Solution

The fourth proportional to 4,272.56, 6,407.40 and 2,190.32 is: 3,284.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.56 : 6,407.40 = 2,190.32 : x
  2. Step 2: Convert to fraction form
    4,272.56/6,407.40 = 2,190.32/x
  3. Step 3: Cross multiply
    4,272.56x = 6,407.40 × 2,190.32
  4. Step 4: Simplify right side
    4,272.56x = 14,034,256.37
  5. Step 5: Solve for x
    x = 14,034,256.37/4,272.56
  6. Step 6: Final answer
    x = 3,284.74

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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.