Home / 2,135.18-2,948.01-1,636.94

Finding the Fourth Proportional to 2,135.18, 2,948.01 and 1,636.94

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Solution

The fourth proportional to 2,135.18, 2,948.01 and 1,636.94 is: 2,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.18 : 2,948.01 = 1,636.94 : x
  2. Step 2: Convert to fraction form
    2,135.18/2,948.01 = 1,636.94/x
  3. Step 3: Cross multiply
    2,135.18x = 2,948.01 × 1,636.94
  4. Step 4: Simplify right side
    2,135.18x = 4,825,716.72
  5. Step 5: Solve for x
    x = 4,825,716.72/2,135.18
  6. Step 6: Final answer
    x = 2,260.10

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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.