Home / 3,280.13-4,920.16-1,964.25

Finding the Fourth Proportional to 3,280.13, 4,920.16 and 1,964.25

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Solution

The fourth proportional to 3,280.13, 4,920.16 and 1,964.25 is: 2,946.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.13 : 4,920.16 = 1,964.25 : x
  2. Step 2: Convert to fraction form
    3,280.13/4,920.16 = 1,964.25/x
  3. Step 3: Cross multiply
    3,280.13x = 4,920.16 × 1,964.25
  4. Step 4: Simplify right side
    3,280.13x = 9,664,424.28
  5. Step 5: Solve for x
    x = 9,664,424.28/3,280.13
  6. Step 6: Final answer
    x = 2,946.35

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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.