Home / 4,212.35-6,319.73-1,291.08

Finding the Fourth Proportional to 4,212.35, 6,319.73 and 1,291.08

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Solution

The fourth proportional to 4,212.35, 6,319.73 and 1,291.08 is: 1,936.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.35 : 6,319.73 = 1,291.08 : x
  2. Step 2: Convert to fraction form
    4,212.35/6,319.73 = 1,291.08/x
  3. Step 3: Cross multiply
    4,212.35x = 6,319.73 × 1,291.08
  4. Step 4: Simplify right side
    4,212.35x = 8,159,280.24
  5. Step 5: Solve for x
    x = 8,159,280.24/4,212.35
  6. Step 6: Final answer
    x = 1,936.99

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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.