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Finding the Fourth Proportional to 1,860.18, 2,790.51 and 627.33

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Solution

The fourth proportional to 1,860.18, 2,790.51 and 627.33 is: 941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.18 : 2,790.51 = 627.33 : x
  2. Step 2: Convert to fraction form
    1,860.18/2,790.51 = 627.33/x
  3. Step 3: Cross multiply
    1,860.18x = 2,790.51 × 627.33
  4. Step 4: Simplify right side
    1,860.18x = 1,750,570.64
  5. Step 5: Solve for x
    x = 1,750,570.64/1,860.18
  6. Step 6: Final answer
    x = 941.08

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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.