Home / 2,126.19-3,188.77-893.62

Finding the Fourth Proportional to 2,126.19, 3,188.77 and 893.62

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Solution

The fourth proportional to 2,126.19, 3,188.77 and 893.62 is: 1,340.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.19 : 3,188.77 = 893.62 : x
  2. Step 2: Convert to fraction form
    2,126.19/3,188.77 = 893.62/x
  3. Step 3: Cross multiply
    2,126.19x = 3,188.77 × 893.62
  4. Step 4: Simplify right side
    2,126.19x = 2,849,530.47
  5. Step 5: Solve for x
    x = 2,849,530.47/2,126.19
  6. Step 6: Final answer
    x = 1,340.21

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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.