Home / 4,187.40-6,280.94-1,265.63

Finding the Fourth Proportional to 4,187.40, 6,280.94 and 1,265.63

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Solution

The fourth proportional to 4,187.40, 6,280.94 and 1,265.63 is: 1,898.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.40 : 6,280.94 = 1,265.63 : x
  2. Step 2: Convert to fraction form
    4,187.40/6,280.94 = 1,265.63/x
  3. Step 3: Cross multiply
    4,187.40x = 6,280.94 × 1,265.63
  4. Step 4: Simplify right side
    4,187.40x = 7,949,317.85
  5. Step 5: Solve for x
    x = 7,949,317.85/4,187.40
  6. Step 6: Final answer
    x = 1,898.39

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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.