Home / 1,455.02-2,181.13-1,107.35

Finding the Fourth Proportional to 1,455.02, 2,181.13 and 1,107.35

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Solution

The fourth proportional to 1,455.02, 2,181.13 and 1,107.35 is: 1,659.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.02 : 2,181.13 = 1,107.35 : x
  2. Step 2: Convert to fraction form
    1,455.02/2,181.13 = 1,107.35/x
  3. Step 3: Cross multiply
    1,455.02x = 2,181.13 × 1,107.35
  4. Step 4: Simplify right side
    1,455.02x = 2,415,274.31
  5. Step 5: Solve for x
    x = 2,415,274.31/1,455.02
  6. Step 6: Final answer
    x = 1,659.96

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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.