Home / 5,124.79-7,072.23-3,107.53

Finding the Fourth Proportional to 5,124.79, 7,072.23 and 3,107.53

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Solution

The fourth proportional to 5,124.79, 7,072.23 and 3,107.53 is: 4,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.79 : 7,072.23 = 3,107.53 : x
  2. Step 2: Convert to fraction form
    5,124.79/7,072.23 = 3,107.53/x
  3. Step 3: Cross multiply
    5,124.79x = 7,072.23 × 3,107.53
  4. Step 4: Simplify right side
    5,124.79x = 21,977,166.89
  5. Step 5: Solve for x
    x = 21,977,166.89/5,124.79
  6. Step 6: Final answer
    x = 4,288.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.