Home / 2,816.37-3,886.67-1,557.59

Finding the Fourth Proportional to 2,816.37, 3,886.67 and 1,557.59

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Solution

The fourth proportional to 2,816.37, 3,886.67 and 1,557.59 is: 2,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.37 : 3,886.67 = 1,557.59 : x
  2. Step 2: Convert to fraction form
    2,816.37/3,886.67 = 1,557.59/x
  3. Step 3: Cross multiply
    2,816.37x = 3,886.67 × 1,557.59
  4. Step 4: Simplify right side
    2,816.37x = 6,053,822.79
  5. Step 5: Solve for x
    x = 6,053,822.79/2,816.37
  6. Step 6: Final answer
    x = 2,149.51

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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.