Home / 5,281.62-7,289.19-3,953.00

Finding the Fourth Proportional to 5,281.62, 7,289.19 and 3,953.00

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Solution

The fourth proportional to 5,281.62, 7,289.19 and 3,953.00 is: 5,455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.62 : 7,289.19 = 3,953.00 : x
  2. Step 2: Convert to fraction form
    5,281.62/7,289.19 = 3,953.00/x
  3. Step 3: Cross multiply
    5,281.62x = 7,289.19 × 3,953.00
  4. Step 4: Simplify right side
    5,281.62x = 28,814,131.62
  5. Step 5: Solve for x
    x = 28,814,131.62/5,281.62
  6. Step 6: Final answer
    x = 5,455.55

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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.