Home / 5,137.21-7,706.59-1,851.07

Finding the Fourth Proportional to 5,137.21, 7,706.59 and 1,851.07

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Solution

The fourth proportional to 5,137.21, 7,706.59 and 1,851.07 is: 2,776.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.21 : 7,706.59 = 1,851.07 : x
  2. Step 2: Convert to fraction form
    5,137.21/7,706.59 = 1,851.07/x
  3. Step 3: Cross multiply
    5,137.21x = 7,706.59 × 1,851.07
  4. Step 4: Simplify right side
    5,137.21x = 14,265,438.52
  5. Step 5: Solve for x
    x = 14,265,438.52/5,137.21
  6. Step 6: Final answer
    x = 2,776.89

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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.