Home / 3,378.36-4,661.82-3,130.68

Finding the Fourth Proportional to 3,378.36, 4,661.82 and 3,130.68

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Solution

The fourth proportional to 3,378.36, 4,661.82 and 3,130.68 is: 4,320.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.36 : 4,661.82 = 3,130.68 : x
  2. Step 2: Convert to fraction form
    3,378.36/4,661.82 = 3,130.68/x
  3. Step 3: Cross multiply
    3,378.36x = 4,661.82 × 3,130.68
  4. Step 4: Simplify right side
    3,378.36x = 14,594,666.64
  5. Step 5: Solve for x
    x = 14,594,666.64/3,378.36
  6. Step 6: Final answer
    x = 4,320.04

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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.