Home / 3,865.08-5,331.86-2,538.60

Finding the Fourth Proportional to 3,865.08, 5,331.86 and 2,538.60

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Solution

The fourth proportional to 3,865.08, 5,331.86 and 2,538.60 is: 3,501.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.08 : 5,331.86 = 2,538.60 : x
  2. Step 2: Convert to fraction form
    3,865.08/5,331.86 = 2,538.60/x
  3. Step 3: Cross multiply
    3,865.08x = 5,331.86 × 2,538.60
  4. Step 4: Simplify right side
    3,865.08x = 13,535,459.80
  5. Step 5: Solve for x
    x = 13,535,459.80/3,865.08
  6. Step 6: Final answer
    x = 3,501.99

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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.