Home / 4,345.70-5,989.03-3,086.80

Finding the Fourth Proportional to 4,345.70, 5,989.03 and 3,086.80

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Solution

The fourth proportional to 4,345.70, 5,989.03 and 3,086.80 is: 4,254.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,345.70 : 5,989.03 = 3,086.80 : x
  2. Step 2: Convert to fraction form
    4,345.70/5,989.03 = 3,086.80/x
  3. Step 3: Cross multiply
    4,345.70x = 5,989.03 × 3,086.80
  4. Step 4: Simplify right side
    4,345.70x = 18,486,915.11
  5. Step 5: Solve for x
    x = 18,486,915.11/4,345.70
  6. Step 6: Final answer
    x = 4,254.08

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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.