Home / 4,187.08-6,281.76-3,405.15

Finding the Fourth Proportional to 4,187.08, 6,281.76 and 3,405.15

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Solution

The fourth proportional to 4,187.08, 6,281.76 and 3,405.15 is: 5,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.08 : 6,281.76 = 3,405.15 : x
  2. Step 2: Convert to fraction form
    4,187.08/6,281.76 = 3,405.15/x
  3. Step 3: Cross multiply
    4,187.08x = 6,281.76 × 3,405.15
  4. Step 4: Simplify right side
    4,187.08x = 21,390,335.06
  5. Step 5: Solve for x
    x = 21,390,335.06/4,187.08
  6. Step 6: Final answer
    x = 5,108.65

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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.