Home / 4,717.81-7,077.74-1,431.15

Finding the Fourth Proportional to 4,717.81, 7,077.74 and 1,431.15

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Solution

The fourth proportional to 4,717.81, 7,077.74 and 1,431.15 is: 2,147.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,717.81 : 7,077.74 = 1,431.15 : x
  2. Step 2: Convert to fraction form
    4,717.81/7,077.74 = 1,431.15/x
  3. Step 3: Cross multiply
    4,717.81x = 7,077.74 × 1,431.15
  4. Step 4: Simplify right side
    4,717.81x = 10,129,307.60
  5. Step 5: Solve for x
    x = 10,129,307.60/4,717.81
  6. Step 6: Final answer
    x = 2,147.04

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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.