Home / 5,137.77-7,706.70-1,242.21

Finding the Fourth Proportional to 5,137.77, 7,706.70 and 1,242.21

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Solution

The fourth proportional to 5,137.77, 7,706.70 and 1,242.21 is: 1,863.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.77 : 7,706.70 = 1,242.21 : x
  2. Step 2: Convert to fraction form
    5,137.77/7,706.70 = 1,242.21/x
  3. Step 3: Cross multiply
    5,137.77x = 7,706.70 × 1,242.21
  4. Step 4: Simplify right side
    5,137.77x = 9,573,339.81
  5. Step 5: Solve for x
    x = 9,573,339.81/5,137.77
  6. Step 6: Final answer
    x = 1,863.33

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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.