Home / 5,281.25-7,287.35-2,923.38

Finding the Fourth Proportional to 5,281.25, 7,287.35 and 2,923.38

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Solution

The fourth proportional to 5,281.25, 7,287.35 and 2,923.38 is: 4,033.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.25 : 7,287.35 = 2,923.38 : x
  2. Step 2: Convert to fraction form
    5,281.25/7,287.35 = 2,923.38/x
  3. Step 3: Cross multiply
    5,281.25x = 7,287.35 × 2,923.38
  4. Step 4: Simplify right side
    5,281.25x = 21,303,678.63
  5. Step 5: Solve for x
    x = 21,303,678.63/5,281.25
  6. Step 6: Final answer
    x = 4,033.84

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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.