Home / 2,816.35-3,886.67-1,557.46

Finding the Fourth Proportional to 2,816.35, 3,886.67 and 1,557.46

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Solution

The fourth proportional to 2,816.35, 3,886.67 and 1,557.46 is: 2,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.35 : 3,886.67 = 1,557.46 : x
  2. Step 2: Convert to fraction form
    2,816.35/3,886.67 = 1,557.46/x
  3. Step 3: Cross multiply
    2,816.35x = 3,886.67 × 1,557.46
  4. Step 4: Simplify right side
    2,816.35x = 6,053,325.27
  5. Step 5: Solve for x
    x = 6,053,325.27/2,816.35
  6. Step 6: Final answer
    x = 2,149.35

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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.