Home / 2,051.40-2,829.96-1,211.54

Finding the Fourth Proportional to 2,051.40, 2,829.96 and 1,211.54

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Solution

The fourth proportional to 2,051.40, 2,829.96 and 1,211.54 is: 1,671.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.40 : 2,829.96 = 1,211.54 : x
  2. Step 2: Convert to fraction form
    2,051.40/2,829.96 = 1,211.54/x
  3. Step 3: Cross multiply
    2,051.40x = 2,829.96 × 1,211.54
  4. Step 4: Simplify right side
    2,051.40x = 3,428,611.51
  5. Step 5: Solve for x
    x = 3,428,611.51/2,051.40
  6. Step 6: Final answer
    x = 1,671.35

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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.