Home / 3,150.45-4,347.78-1,806.06

Finding the Fourth Proportional to 3,150.45, 4,347.78 and 1,806.06

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Solution

The fourth proportional to 3,150.45, 4,347.78 and 1,806.06 is: 2,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.45 : 4,347.78 = 1,806.06 : x
  2. Step 2: Convert to fraction form
    3,150.45/4,347.78 = 1,806.06/x
  3. Step 3: Cross multiply
    3,150.45x = 4,347.78 × 1,806.06
  4. Step 4: Simplify right side
    3,150.45x = 7,852,351.55
  5. Step 5: Solve for x
    x = 7,852,351.55/3,150.45
  6. Step 6: Final answer
    x = 2,492.45

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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.