Home / 3,345.28-4,614-2,165.44

Finding the Fourth Proportional to 3,345.28, 4,614 and 2,165.44

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Solution

The fourth proportional to 3,345.28, 4,614 and 2,165.44 is: 2,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.28 : 4,614 = 2,165.44 : x
  2. Step 2: Convert to fraction form
    3,345.28/4,614 = 2,165.44/x
  3. Step 3: Cross multiply
    3,345.28x = 4,614 × 2,165.44
  4. Step 4: Simplify right side
    3,345.28x = 9,991,340.16
  5. Step 5: Solve for x
    x = 9,991,340.16/3,345.28
  6. Step 6: Final answer
    x = 2,986.70

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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.