Home / 2,140.16-3,206.72-1,619.44

Finding the Fourth Proportional to 2,140.16, 3,206.72 and 1,619.44

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Solution

The fourth proportional to 2,140.16, 3,206.72 and 1,619.44 is: 2,426.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.16 : 3,206.72 = 1,619.44 : x
  2. Step 2: Convert to fraction form
    2,140.16/3,206.72 = 1,619.44/x
  3. Step 3: Cross multiply
    2,140.16x = 3,206.72 × 1,619.44
  4. Step 4: Simplify right side
    2,140.16x = 5,193,090.64
  5. Step 5: Solve for x
    x = 5,193,090.64/2,140.16
  6. Step 6: Final answer
    x = 2,426.50

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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.