Home / 1,693.33-2,336.77-947.28

Finding the Fourth Proportional to 1,693.33, 2,336.77 and 947.28

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Solution

The fourth proportional to 1,693.33, 2,336.77 and 947.28 is: 1,307.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.33 : 2,336.77 = 947.28 : x
  2. Step 2: Convert to fraction form
    1,693.33/2,336.77 = 947.28/x
  3. Step 3: Cross multiply
    1,693.33x = 2,336.77 × 947.28
  4. Step 4: Simplify right side
    1,693.33x = 2,213,575.49
  5. Step 5: Solve for x
    x = 2,213,575.49/1,693.33
  6. Step 6: Final answer
    x = 1,307.23

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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.