Home / 1,670.64-2,503.08-1,107.43

Finding the Fourth Proportional to 1,670.64, 2,503.08 and 1,107.43

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Solution

The fourth proportional to 1,670.64, 2,503.08 and 1,107.43 is: 1,659.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.64 : 2,503.08 = 1,107.43 : x
  2. Step 2: Convert to fraction form
    1,670.64/2,503.08 = 1,107.43/x
  3. Step 3: Cross multiply
    1,670.64x = 2,503.08 × 1,107.43
  4. Step 4: Simplify right side
    1,670.64x = 2,771,985.88
  5. Step 5: Solve for x
    x = 2,771,985.88/1,670.64
  6. Step 6: Final answer
    x = 1,659.24

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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.