Home / 4,051.40-5,579.70-3,118.28

Finding the Fourth Proportional to 4,051.40, 5,579.70 and 3,118.28

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Solution

The fourth proportional to 4,051.40, 5,579.70 and 3,118.28 is: 4,294.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,051.40 : 5,579.70 = 3,118.28 : x
  2. Step 2: Convert to fraction form
    4,051.40/5,579.70 = 3,118.28/x
  3. Step 3: Cross multiply
    4,051.40x = 5,579.70 × 3,118.28
  4. Step 4: Simplify right side
    4,051.40x = 17,399,066.92
  5. Step 5: Solve for x
    x = 17,399,066.92/4,051.40
  6. Step 6: Final answer
    x = 4,294.58

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1.5x scale

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.