Home / 5,137.80-7,706.64-1,242.24

Finding the Fourth Proportional to 5,137.80, 7,706.64 and 1,242.24

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Solution

The fourth proportional to 5,137.80, 7,706.64 and 1,242.24 is: 1,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.80 : 7,706.64 = 1,242.24 : x
  2. Step 2: Convert to fraction form
    5,137.80/7,706.64 = 1,242.24/x
  3. Step 3: Cross multiply
    5,137.80x = 7,706.64 × 1,242.24
  4. Step 4: Simplify right side
    5,137.80x = 9,573,496.47
  5. Step 5: Solve for x
    x = 9,573,496.47/5,137.80
  6. Step 6: Final answer
    x = 1,863.35

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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.