Home / 3,368.15-4,646.45-2,188.79

Finding the Fourth Proportional to 3,368.15, 4,646.45 and 2,188.79

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Solution

The fourth proportional to 3,368.15, 4,646.45 and 2,188.79 is: 3,019.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.15 : 4,646.45 = 2,188.79 : x
  2. Step 2: Convert to fraction form
    3,368.15/4,646.45 = 2,188.79/x
  3. Step 3: Cross multiply
    3,368.15x = 4,646.45 × 2,188.79
  4. Step 4: Simplify right side
    3,368.15x = 10,170,085.54
  5. Step 5: Solve for x
    x = 10,170,085.54/3,368.15
  6. Step 6: Final answer
    x = 3,019.49

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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.