Home / 3,116.03-4,299.75-1,857.15

Finding the Fourth Proportional to 3,116.03, 4,299.75 and 1,857.15

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Solution

The fourth proportional to 3,116.03, 4,299.75 and 1,857.15 is: 2,562.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.03 : 4,299.75 = 1,857.15 : x
  2. Step 2: Convert to fraction form
    3,116.03/4,299.75 = 1,857.15/x
  3. Step 3: Cross multiply
    3,116.03x = 4,299.75 × 1,857.15
  4. Step 4: Simplify right side
    3,116.03x = 7,985,280.71
  5. Step 5: Solve for x
    x = 7,985,280.71/3,116.03
  6. Step 6: Final answer
    x = 2,562.65

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1.5x scale

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.