Home / 3,155.16-4,729.50-1,206.84

Finding the Fourth Proportional to 3,155.16, 4,729.50 and 1,206.84

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Solution

The fourth proportional to 3,155.16, 4,729.50 and 1,206.84 is: 1,809.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.16 : 4,729.50 = 1,206.84 : x
  2. Step 2: Convert to fraction form
    3,155.16/4,729.50 = 1,206.84/x
  3. Step 3: Cross multiply
    3,155.16x = 4,729.50 × 1,206.84
  4. Step 4: Simplify right side
    3,155.16x = 5,707,749.78
  5. Step 5: Solve for x
    x = 5,707,749.78/3,155.16
  6. Step 6: Final answer
    x = 1,809.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.