Home / 2,676.86-3,693.44-1,557.20

Finding the Fourth Proportional to 2,676.86, 3,693.44 and 1,557.20

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Solution

The fourth proportional to 2,676.86, 3,693.44 and 1,557.20 is: 2,148.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676.86 : 3,693.44 = 1,557.20 : x
  2. Step 2: Convert to fraction form
    2,676.86/3,693.44 = 1,557.20/x
  3. Step 3: Cross multiply
    2,676.86x = 3,693.44 × 1,557.20
  4. Step 4: Simplify right side
    2,676.86x = 5,751,424.77
  5. Step 5: Solve for x
    x = 5,751,424.77/2,676.86
  6. Step 6: Final answer
    x = 2,148.57

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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.