Home / 2,815.98-3,887.61-1,697.19

Finding the Fourth Proportional to 2,815.98, 3,887.61 and 1,697.19

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Solution

The fourth proportional to 2,815.98, 3,887.61 and 1,697.19 is: 2,343.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.98 : 3,887.61 = 1,697.19 : x
  2. Step 2: Convert to fraction form
    2,815.98/3,887.61 = 1,697.19/x
  3. Step 3: Cross multiply
    2,815.98x = 3,887.61 × 1,697.19
  4. Step 4: Simplify right side
    2,815.98x = 6,598,004.33
  5. Step 5: Solve for x
    x = 6,598,004.33/2,815.98
  6. Step 6: Final answer
    x = 2,343.06

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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.