Home / 4,137.58-5,718.05-3,390.36

Finding the Fourth Proportional to 4,137.58, 5,718.05 and 3,390.36

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Solution

The fourth proportional to 4,137.58, 5,718.05 and 3,390.36 is: 4,685.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,137.58 : 5,718.05 = 3,390.36 : x
  2. Step 2: Convert to fraction form
    4,137.58/5,718.05 = 3,390.36/x
  3. Step 3: Cross multiply
    4,137.58x = 5,718.05 × 3,390.36
  4. Step 4: Simplify right side
    4,137.58x = 19,386,248.00
  5. Step 5: Solve for x
    x = 19,386,248.00/4,137.58
  6. Step 6: Final answer
    x = 4,685.41

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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.