Home / 2,038.17-2,812.18-1,198.81

Finding the Fourth Proportional to 2,038.17, 2,812.18 and 1,198.81

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Solution

The fourth proportional to 2,038.17, 2,812.18 and 1,198.81 is: 1,654.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.17 : 2,812.18 = 1,198.81 : x
  2. Step 2: Convert to fraction form
    2,038.17/2,812.18 = 1,198.81/x
  3. Step 3: Cross multiply
    2,038.17x = 2,812.18 × 1,198.81
  4. Step 4: Simplify right side
    2,038.17x = 3,371,269.51
  5. Step 5: Solve for x
    x = 3,371,269.51/2,038.17
  6. Step 6: Final answer
    x = 1,654.07

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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.