Home / 2,966.40-4,093.67-1,640.10

Finding the Fourth Proportional to 2,966.40, 4,093.67 and 1,640.10

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Solution

The fourth proportional to 2,966.40, 4,093.67 and 1,640.10 is: 2,263.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.40 : 4,093.67 = 1,640.10 : x
  2. Step 2: Convert to fraction form
    2,966.40/4,093.67 = 1,640.10/x
  3. Step 3: Cross multiply
    2,966.40x = 4,093.67 × 1,640.10
  4. Step 4: Simplify right side
    2,966.40x = 6,714,028.17
  5. Step 5: Solve for x
    x = 6,714,028.17/2,966.40
  6. Step 6: Final answer
    x = 2,263.36

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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.