Home / 2,685.56-4,027.20-1,225.64

Finding the Fourth Proportional to 2,685.56, 4,027.20 and 1,225.64

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Solution

The fourth proportional to 2,685.56, 4,027.20 and 1,225.64 is: 1,837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.56 : 4,027.20 = 1,225.64 : x
  2. Step 2: Convert to fraction form
    2,685.56/4,027.20 = 1,225.64/x
  3. Step 3: Cross multiply
    2,685.56x = 4,027.20 × 1,225.64
  4. Step 4: Simplify right side
    2,685.56x = 4,935,897.41
  5. Step 5: Solve for x
    x = 4,935,897.41/2,685.56
  6. Step 6: Final answer
    x = 1,837.94

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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.