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Finding the Fourth Proportional to 1,698.47, 2,342.93 and 1,068.76

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Solution

The fourth proportional to 1,698.47, 2,342.93 and 1,068.76 is: 1,474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.47 : 2,342.93 = 1,068.76 : x
  2. Step 2: Convert to fraction form
    1,698.47/2,342.93 = 1,068.76/x
  3. Step 3: Cross multiply
    1,698.47x = 2,342.93 × 1,068.76
  4. Step 4: Simplify right side
    1,698.47x = 2,504,026.68
  5. Step 5: Solve for x
    x = 2,504,026.68/1,698.47
  6. Step 6: Final answer
    x = 1,474.29

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Double scale
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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.