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Finding the Fourth Proportional to 1,683.74, 2,323.36 and 975.59

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Solution

The fourth proportional to 1,683.74, 2,323.36 and 975.59 is: 1,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683.74 : 2,323.36 = 975.59 : x
  2. Step 2: Convert to fraction form
    1,683.74/2,323.36 = 975.59/x
  3. Step 3: Cross multiply
    1,683.74x = 2,323.36 × 975.59
  4. Step 4: Simplify right side
    1,683.74x = 2,266,646.78
  5. Step 5: Solve for x
    x = 2,266,646.78/1,683.74
  6. Step 6: Final answer
    x = 1,346.20

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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.