Home / 2,128.10-3,193.40-895.42

Finding the Fourth Proportional to 2,128.10, 3,193.40 and 895.42

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Solution

The fourth proportional to 2,128.10, 3,193.40 and 895.42 is: 1,343.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.10 : 3,193.40 = 895.42 : x
  2. Step 2: Convert to fraction form
    2,128.10/3,193.40 = 895.42/x
  3. Step 3: Cross multiply
    2,128.10x = 3,193.40 × 895.42
  4. Step 4: Simplify right side
    2,128.10x = 2,859,434.23
  5. Step 5: Solve for x
    x = 2,859,434.23/2,128.10
  6. Step 6: Final answer
    x = 1,343.66

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.