Home / 3,955.86-5,459.04-2,187.47

Finding the Fourth Proportional to 3,955.86, 5,459.04 and 2,187.47

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Solution

The fourth proportional to 3,955.86, 5,459.04 and 2,187.47 is: 3,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.86 : 5,459.04 = 2,187.47 : x
  2. Step 2: Convert to fraction form
    3,955.86/5,459.04 = 2,187.47/x
  3. Step 3: Cross multiply
    3,955.86x = 5,459.04 × 2,187.47
  4. Step 4: Simplify right side
    3,955.86x = 11,941,458.93
  5. Step 5: Solve for x
    x = 11,941,458.93/3,955.86
  6. Step 6: Final answer
    x = 3,018.68

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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.