Home / 3,409.68-4,698.65-2,228.70

Finding the Fourth Proportional to 3,409.68, 4,698.65 and 2,228.70

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Solution

The fourth proportional to 3,409.68, 4,698.65 and 2,228.70 is: 3,071.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.68 : 4,698.65 = 2,228.70 : x
  2. Step 2: Convert to fraction form
    3,409.68/4,698.65 = 2,228.70/x
  3. Step 3: Cross multiply
    3,409.68x = 4,698.65 × 2,228.70
  4. Step 4: Simplify right side
    3,409.68x = 10,471,870.11
  5. Step 5: Solve for x
    x = 10,471,870.11/3,409.68
  6. Step 6: Final answer
    x = 3,071.22

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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.