Home / 3,853.74-5,316.93-2,281.53

Finding the Fourth Proportional to 3,853.74, 5,316.93 and 2,281.53

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Solution

The fourth proportional to 3,853.74, 5,316.93 and 2,281.53 is: 3,147.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.74 : 5,316.93 = 2,281.53 : x
  2. Step 2: Convert to fraction form
    3,853.74/5,316.93 = 2,281.53/x
  3. Step 3: Cross multiply
    3,853.74x = 5,316.93 × 2,281.53
  4. Step 4: Simplify right side
    3,853.74x = 12,130,735.30
  5. Step 5: Solve for x
    x = 12,130,735.30/3,853.74
  6. Step 6: Final answer
    x = 3,147.78

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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.