Home / 2,785.24-3,843.11-1,665.93

Finding the Fourth Proportional to 2,785.24, 3,843.11 and 1,665.93

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Solution

The fourth proportional to 2,785.24, 3,843.11 and 1,665.93 is: 2,298.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.24 : 3,843.11 = 1,665.93 : x
  2. Step 2: Convert to fraction form
    2,785.24/3,843.11 = 1,665.93/x
  3. Step 3: Cross multiply
    2,785.24x = 3,843.11 × 1,665.93
  4. Step 4: Simplify right side
    2,785.24x = 6,402,352.24
  5. Step 5: Solve for x
    x = 6,402,352.24/2,785.24
  6. Step 6: Final answer
    x = 2,298.67

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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.