Home / 3,655.48-5,039.63-3,157.06

Finding the Fourth Proportional to 3,655.48, 5,039.63 and 3,157.06

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Solution

The fourth proportional to 3,655.48, 5,039.63 and 3,157.06 is: 4,352.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.48 : 5,039.63 = 3,157.06 : x
  2. Step 2: Convert to fraction form
    3,655.48/5,039.63 = 3,157.06/x
  3. Step 3: Cross multiply
    3,655.48x = 5,039.63 × 3,157.06
  4. Step 4: Simplify right side
    3,655.48x = 15,910,398.50
  5. Step 5: Solve for x
    x = 15,910,398.50/3,655.48
  6. Step 6: Final answer
    x = 4,352.48

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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.