Home / 5,260.94-7,880.67-3,280.08

Finding the Fourth Proportional to 5,260.94, 7,880.67 and 3,280.08

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Solution

The fourth proportional to 5,260.94, 7,880.67 and 3,280.08 is: 4,913.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.94 : 7,880.67 = 3,280.08 : x
  2. Step 2: Convert to fraction form
    5,260.94/7,880.67 = 3,280.08/x
  3. Step 3: Cross multiply
    5,260.94x = 7,880.67 × 3,280.08
  4. Step 4: Simplify right side
    5,260.94x = 25,849,228.05
  5. Step 5: Solve for x
    x = 25,849,228.05/5,260.94
  6. Step 6: Final answer
    x = 4,913.42

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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.