Home / 2,815.74-3,885.87-1,697.13

Finding the Fourth Proportional to 2,815.74, 3,885.87 and 1,697.13

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Solution

The fourth proportional to 2,815.74, 3,885.87 and 1,697.13 is: 2,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.74 : 3,885.87 = 1,697.13 : x
  2. Step 2: Convert to fraction form
    2,815.74/3,885.87 = 1,697.13/x
  3. Step 3: Cross multiply
    2,815.74x = 3,885.87 × 1,697.13
  4. Step 4: Simplify right side
    2,815.74x = 6,594,826.55
  5. Step 5: Solve for x
    x = 6,594,826.55/2,815.74
  6. Step 6: Final answer
    x = 2,342.13

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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.