Home / 7,114.14-9,815.67-4,280.61

Finding the Fourth Proportional to 7,114.14, 9,815.67 and 4,280.61

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Solution

The fourth proportional to 7,114.14, 9,815.67 and 4,280.61 is: 5,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,114.14 : 9,815.67 = 4,280.61 : x
  2. Step 2: Convert to fraction form
    7,114.14/9,815.67 = 4,280.61/x
  3. Step 3: Cross multiply
    7,114.14x = 9,815.67 × 4,280.61
  4. Step 4: Simplify right side
    7,114.14x = 42,017,055.16
  5. Step 5: Solve for x
    x = 42,017,055.16/7,114.14
  6. Step 6: Final answer
    x = 5,906.13

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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.