Home / 1,556.02-2,330.46-938.38

Finding the Fourth Proportional to 1,556.02, 2,330.46 and 938.38

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Solution

The fourth proportional to 1,556.02, 2,330.46 and 938.38 is: 1,405.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.02 : 2,330.46 = 938.38 : x
  2. Step 2: Convert to fraction form
    1,556.02/2,330.46 = 938.38/x
  3. Step 3: Cross multiply
    1,556.02x = 2,330.46 × 938.38
  4. Step 4: Simplify right side
    1,556.02x = 2,186,857.05
  5. Step 5: Solve for x
    x = 2,186,857.05/1,556.02
  6. Step 6: Final answer
    x = 1,405.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.