Home / 3,487.90-4,813.28-1,894.53

Finding the Fourth Proportional to 3,487.90, 4,813.28 and 1,894.53

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Solution

The fourth proportional to 3,487.90, 4,813.28 and 1,894.53 is: 2,614.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.90 : 4,813.28 = 1,894.53 : x
  2. Step 2: Convert to fraction form
    3,487.90/4,813.28 = 1,894.53/x
  3. Step 3: Cross multiply
    3,487.90x = 4,813.28 × 1,894.53
  4. Step 4: Simplify right side
    3,487.90x = 9,118,869.82
  5. Step 5: Solve for x
    x = 9,118,869.82/3,487.90
  6. Step 6: Final answer
    x = 2,614.43

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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.