Home / 3,118.56-4,675.38-1,557.71

Finding the Fourth Proportional to 3,118.56, 4,675.38 and 1,557.71

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Solution

The fourth proportional to 3,118.56, 4,675.38 and 1,557.71 is: 2,335.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.56 : 4,675.38 = 1,557.71 : x
  2. Step 2: Convert to fraction form
    3,118.56/4,675.38 = 1,557.71/x
  3. Step 3: Cross multiply
    3,118.56x = 4,675.38 × 1,557.71
  4. Step 4: Simplify right side
    3,118.56x = 7,282,886.18
  5. Step 5: Solve for x
    x = 7,282,886.18/3,118.56
  6. Step 6: Final answer
    x = 2,335.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.