Home / 1,445.15-1,994.41-1,090.45

Finding the Fourth Proportional to 1,445.15, 1,994.41 and 1,090.45

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Solution

The fourth proportional to 1,445.15, 1,994.41 and 1,090.45 is: 1,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.15 : 1,994.41 = 1,090.45 : x
  2. Step 2: Convert to fraction form
    1,445.15/1,994.41 = 1,090.45/x
  3. Step 3: Cross multiply
    1,445.15x = 1,994.41 × 1,090.45
  4. Step 4: Simplify right side
    1,445.15x = 2,174,808.24
  5. Step 5: Solve for x
    x = 2,174,808.24/1,445.15
  6. Step 6: Final answer
    x = 1,504.90

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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.