Home / 3,328.81-4,593.58-1,911.51

Finding the Fourth Proportional to 3,328.81, 4,593.58 and 1,911.51

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Solution

The fourth proportional to 3,328.81, 4,593.58 and 1,911.51 is: 2,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.81 : 4,593.58 = 1,911.51 : x
  2. Step 2: Convert to fraction form
    3,328.81/4,593.58 = 1,911.51/x
  3. Step 3: Cross multiply
    3,328.81x = 4,593.58 × 1,911.51
  4. Step 4: Simplify right side
    3,328.81x = 8,780,674.11
  5. Step 5: Solve for x
    x = 8,780,674.11/3,328.81
  6. Step 6: Final answer
    x = 2,637.78

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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.