Home / 3,967.89-5,475.93-2,289.60

Finding the Fourth Proportional to 3,967.89, 5,475.93 and 2,289.60

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Solution

The fourth proportional to 3,967.89, 5,475.93 and 2,289.60 is: 3,159.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.89 : 5,475.93 = 2,289.60 : x
  2. Step 2: Convert to fraction form
    3,967.89/5,475.93 = 2,289.60/x
  3. Step 3: Cross multiply
    3,967.89x = 5,475.93 × 2,289.60
  4. Step 4: Simplify right side
    3,967.89x = 12,537,689.33
  5. Step 5: Solve for x
    x = 12,537,689.33/3,967.89
  6. Step 6: Final answer
    x = 3,159.79

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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.