Home / 5,615.49-8,417.37-1,916.43

Finding the Fourth Proportional to 5,615.49, 8,417.37 and 1,916.43

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Solution

The fourth proportional to 5,615.49, 8,417.37 and 1,916.43 is: 2,872.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.49 : 8,417.37 = 1,916.43 : x
  2. Step 2: Convert to fraction form
    5,615.49/8,417.37 = 1,916.43/x
  3. Step 3: Cross multiply
    5,615.49x = 8,417.37 × 1,916.43
  4. Step 4: Simplify right side
    5,615.49x = 16,131,300.39
  5. Step 5: Solve for x
    x = 16,131,300.39/5,615.49
  6. Step 6: Final answer
    x = 2,872.64

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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.