Home / 6,916.38-10,372.99-1,985.98

Finding the Fourth Proportional to 6,916.38, 10,372.99 and 1,985.98

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Solution

The fourth proportional to 6,916.38, 10,372.99 and 1,985.98 is: 2,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.38 : 10,372.99 = 1,985.98 : x
  2. Step 2: Convert to fraction form
    6,916.38/10,372.99 = 1,985.98/x
  3. Step 3: Cross multiply
    6,916.38x = 10,372.99 × 1,985.98
  4. Step 4: Simplify right side
    6,916.38x = 20,600,550.68
  5. Step 5: Solve for x
    x = 20,600,550.68/6,916.38
  6. Step 6: Final answer
    x = 2,978.52

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1.5x scale

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.