Home / 4,118.72-5,683.40-2,255.68

Finding the Fourth Proportional to 4,118.72, 5,683.40 and 2,255.68

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Solution

The fourth proportional to 4,118.72, 5,683.40 and 2,255.68 is: 3,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118.72 : 5,683.40 = 2,255.68 : x
  2. Step 2: Convert to fraction form
    4,118.72/5,683.40 = 2,255.68/x
  3. Step 3: Cross multiply
    4,118.72x = 5,683.40 × 2,255.68
  4. Step 4: Simplify right side
    4,118.72x = 12,819,931.71
  5. Step 5: Solve for x
    x = 12,819,931.71/4,118.72
  6. Step 6: Final answer
    x = 3,112.60

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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.