Home / 3,345.67-4,617.03-2,087.20

Finding the Fourth Proportional to 3,345.67, 4,617.03 and 2,087.20

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Solution

The fourth proportional to 3,345.67, 4,617.03 and 2,087.20 is: 2,880.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.67 : 4,617.03 = 2,087.20 : x
  2. Step 2: Convert to fraction form
    3,345.67/4,617.03 = 2,087.20/x
  3. Step 3: Cross multiply
    3,345.67x = 4,617.03 × 2,087.20
  4. Step 4: Simplify right side
    3,345.67x = 9,636,665.02
  5. Step 5: Solve for x
    x = 9,636,665.02/3,345.67
  6. Step 6: Final answer
    x = 2,880.34

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Half scale
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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.