Home / 2,575.86-3,869.94-1,653.21

Finding the Fourth Proportional to 2,575.86, 3,869.94 and 1,653.21

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Solution

The fourth proportional to 2,575.86, 3,869.94 and 1,653.21 is: 2,483.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.86 : 3,869.94 = 1,653.21 : x
  2. Step 2: Convert to fraction form
    2,575.86/3,869.94 = 1,653.21/x
  3. Step 3: Cross multiply
    2,575.86x = 3,869.94 × 1,653.21
  4. Step 4: Simplify right side
    2,575.86x = 6,397,823.51
  5. Step 5: Solve for x
    x = 6,397,823.51/2,575.86
  6. Step 6: Final answer
    x = 2,483.76

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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.