Home / 1,055.50-1,582.67-361.78

Finding the Fourth Proportional to 1,055.50, 1,582.67 and 361.78

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Solution

The fourth proportional to 1,055.50, 1,582.67 and 361.78 is: 542.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055.50 : 1,582.67 = 361.78 : x
  2. Step 2: Convert to fraction form
    1,055.50/1,582.67 = 361.78/x
  3. Step 3: Cross multiply
    1,055.50x = 1,582.67 × 361.78
  4. Step 4: Simplify right side
    1,055.50x = 572,578.35
  5. Step 5: Solve for x
    x = 572,578.35/1,055.50
  6. Step 6: Final answer
    x = 542.47

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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.