Home / 2,095.21-2,889.30-1,385.65

Finding the Fourth Proportional to 2,095.21, 2,889.30 and 1,385.65

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Solution

The fourth proportional to 2,095.21, 2,889.30 and 1,385.65 is: 1,910.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.21 : 2,889.30 = 1,385.65 : x
  2. Step 2: Convert to fraction form
    2,095.21/2,889.30 = 1,385.65/x
  3. Step 3: Cross multiply
    2,095.21x = 2,889.30 × 1,385.65
  4. Step 4: Simplify right side
    2,095.21x = 4,003,558.55
  5. Step 5: Solve for x
    x = 4,003,558.55/2,095.21
  6. Step 6: Final answer
    x = 1,910.81

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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.