Home / 1,683.38-2,322.81-1,020.13

Finding the Fourth Proportional to 1,683.38, 2,322.81 and 1,020.13

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Solution

The fourth proportional to 1,683.38, 2,322.81 and 1,020.13 is: 1,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683.38 : 2,322.81 = 1,020.13 : x
  2. Step 2: Convert to fraction form
    1,683.38/2,322.81 = 1,020.13/x
  3. Step 3: Cross multiply
    1,683.38x = 2,322.81 × 1,020.13
  4. Step 4: Simplify right side
    1,683.38x = 2,369,562.36
  5. Step 5: Solve for x
    x = 2,369,562.36/1,683.38
  6. Step 6: Final answer
    x = 1,407.62

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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.