Home / 4,771.35-7,156.26-1,307.79

Finding the Fourth Proportional to 4,771.35, 7,156.26 and 1,307.79

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Solution

The fourth proportional to 4,771.35, 7,156.26 and 1,307.79 is: 1,961.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,771.35 : 7,156.26 = 1,307.79 : x
  2. Step 2: Convert to fraction form
    4,771.35/7,156.26 = 1,307.79/x
  3. Step 3: Cross multiply
    4,771.35x = 7,156.26 × 1,307.79
  4. Step 4: Simplify right side
    4,771.35x = 9,358,885.27
  5. Step 5: Solve for x
    x = 9,358,885.27/4,771.35
  6. Step 6: Final answer
    x = 1,961.48

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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.