Home / 2,315.81-3,196.87-1,477.66

Finding the Fourth Proportional to 2,315.81, 3,196.87 and 1,477.66

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Solution

The fourth proportional to 2,315.81, 3,196.87 and 1,477.66 is: 2,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.81 : 3,196.87 = 1,477.66 : x
  2. Step 2: Convert to fraction form
    2,315.81/3,196.87 = 1,477.66/x
  3. Step 3: Cross multiply
    2,315.81x = 3,196.87 × 1,477.66
  4. Step 4: Simplify right side
    2,315.81x = 4,723,886.92
  5. Step 5: Solve for x
    x = 4,723,886.92/2,315.81
  6. Step 6: Final answer
    x = 2,039.84

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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.