Home / 1,683.19-2,322.55-1,122.77

Finding the Fourth Proportional to 1,683.19, 2,322.55 and 1,122.77

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Solution

The fourth proportional to 1,683.19, 2,322.55 and 1,122.77 is: 1,549.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683.19 : 2,322.55 = 1,122.77 : x
  2. Step 2: Convert to fraction form
    1,683.19/2,322.55 = 1,122.77/x
  3. Step 3: Cross multiply
    1,683.19x = 2,322.55 × 1,122.77
  4. Step 4: Simplify right side
    1,683.19x = 2,607,696.78
  5. Step 5: Solve for x
    x = 2,607,696.78/1,683.19
  6. Step 6: Final answer
    x = 1,549.26

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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.