Home / 1,698.35-2,343.69-942.13

Finding the Fourth Proportional to 1,698.35, 2,343.69 and 942.13

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Solution

The fourth proportional to 1,698.35, 2,343.69 and 942.13 is: 1,300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.35 : 2,343.69 = 942.13 : x
  2. Step 2: Convert to fraction form
    1,698.35/2,343.69 = 942.13/x
  3. Step 3: Cross multiply
    1,698.35x = 2,343.69 × 942.13
  4. Step 4: Simplify right side
    1,698.35x = 2,208,048.94
  5. Step 5: Solve for x
    x = 2,208,048.94/1,698.35
  6. Step 6: Final answer
    x = 1,300.11

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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.