Home / 4,187.21-6,280.74-1,267.56

Finding the Fourth Proportional to 4,187.21, 6,280.74 and 1,267.56

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Solution

The fourth proportional to 4,187.21, 6,280.74 and 1,267.56 is: 1,901.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.21 : 6,280.74 = 1,267.56 : x
  2. Step 2: Convert to fraction form
    4,187.21/6,280.74 = 1,267.56/x
  3. Step 3: Cross multiply
    4,187.21x = 6,280.74 × 1,267.56
  4. Step 4: Simplify right side
    4,187.21x = 7,961,214.79
  5. Step 5: Solve for x
    x = 7,961,214.79/4,187.21
  6. Step 6: Final answer
    x = 1,901.32

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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.