Home / 4,987.86-7,484.40-2,216.52

Finding the Fourth Proportional to 4,987.86, 7,484.40 and 2,216.52

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Solution

The fourth proportional to 4,987.86, 7,484.40 and 2,216.52 is: 3,325.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.86 : 7,484.40 = 2,216.52 : x
  2. Step 2: Convert to fraction form
    4,987.86/7,484.40 = 2,216.52/x
  3. Step 3: Cross multiply
    4,987.86x = 7,484.40 × 2,216.52
  4. Step 4: Simplify right side
    4,987.86x = 16,589,322.29
  5. Step 5: Solve for x
    x = 16,589,322.29/4,987.86
  6. Step 6: Final answer
    x = 3,325.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.