Home / 1,620.95-2,237.57-1,090.14

Finding the Fourth Proportional to 1,620.95, 2,237.57 and 1,090.14

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Solution

The fourth proportional to 1,620.95, 2,237.57 and 1,090.14 is: 1,504.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.95 : 2,237.57 = 1,090.14 : x
  2. Step 2: Convert to fraction form
    1,620.95/2,237.57 = 1,090.14/x
  3. Step 3: Cross multiply
    1,620.95x = 2,237.57 × 1,090.14
  4. Step 4: Simplify right side
    1,620.95x = 2,439,259.11
  5. Step 5: Solve for x
    x = 2,439,259.11/1,620.95
  6. Step 6: Final answer
    x = 1,504.84

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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.