Home / 3,065.08-4,228.42-1,806.20

Finding the Fourth Proportional to 3,065.08, 4,228.42 and 1,806.20

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Solution

The fourth proportional to 3,065.08, 4,228.42 and 1,806.20 is: 2,491.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.08 : 4,228.42 = 1,806.20 : x
  2. Step 2: Convert to fraction form
    3,065.08/4,228.42 = 1,806.20/x
  3. Step 3: Cross multiply
    3,065.08x = 4,228.42 × 1,806.20
  4. Step 4: Simplify right side
    3,065.08x = 7,637,372.20
  5. Step 5: Solve for x
    x = 7,637,372.20/3,065.08
  6. Step 6: Final answer
    x = 2,491.74

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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.