Home / 7,280.60-10,033.90-5,287.69

Finding the Fourth Proportional to 7,280.60, 10,033.90 and 5,287.69

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Solution

The fourth proportional to 7,280.60, 10,033.90 and 5,287.69 is: 7,287.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.60 : 10,033.90 = 5,287.69 : x
  2. Step 2: Convert to fraction form
    7,280.60/10,033.90 = 5,287.69/x
  3. Step 3: Cross multiply
    7,280.60x = 10,033.90 × 5,287.69
  4. Step 4: Simplify right side
    7,280.60x = 53,056,152.69
  5. Step 5: Solve for x
    x = 53,056,152.69/7,280.60
  6. Step 6: Final answer
    x = 7,287.33

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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.