Home / 1,190.02-1,643.04-942.55

Finding the Fourth Proportional to 1,190.02, 1,643.04 and 942.55

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Solution

The fourth proportional to 1,190.02, 1,643.04 and 942.55 is: 1,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.02 : 1,643.04 = 942.55 : x
  2. Step 2: Convert to fraction form
    1,190.02/1,643.04 = 942.55/x
  3. Step 3: Cross multiply
    1,190.02x = 1,643.04 × 942.55
  4. Step 4: Simplify right side
    1,190.02x = 1,548,647.35
  5. Step 5: Solve for x
    x = 1,548,647.35/1,190.02
  6. Step 6: Final answer
    x = 1,301.36

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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.