Home / 2,816.37-3,886.52-1,557.39

Finding the Fourth Proportional to 2,816.37, 3,886.52 and 1,557.39

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Solution

The fourth proportional to 2,816.37, 3,886.52 and 1,557.39 is: 2,149.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.37 : 3,886.52 = 1,557.39 : x
  2. Step 2: Convert to fraction form
    2,816.37/3,886.52 = 1,557.39/x
  3. Step 3: Cross multiply
    2,816.37x = 3,886.52 × 1,557.39
  4. Step 4: Simplify right side
    2,816.37x = 6,052,819.60
  5. Step 5: Solve for x
    x = 6,052,819.60/2,816.37
  6. Step 6: Final answer
    x = 2,149.16

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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.