Home / 4,190.07-6,281.91-1,415.07

Finding the Fourth Proportional to 4,190.07, 6,281.91 and 1,415.07

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Solution

The fourth proportional to 4,190.07, 6,281.91 and 1,415.07 is: 2,121.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.07 : 6,281.91 = 1,415.07 : x
  2. Step 2: Convert to fraction form
    4,190.07/6,281.91 = 1,415.07/x
  3. Step 3: Cross multiply
    4,190.07x = 6,281.91 × 1,415.07
  4. Step 4: Simplify right side
    4,190.07x = 8,889,342.38
  5. Step 5: Solve for x
    x = 8,889,342.38/4,190.07
  6. Step 6: Final answer
    x = 2,121.53

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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.