Home / 5,271.63-7,907.43-2,153.10

Finding the Fourth Proportional to 5,271.63, 7,907.43 and 2,153.10

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Solution

The fourth proportional to 5,271.63, 7,907.43 and 2,153.10 is: 3,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.63 : 7,907.43 = 2,153.10 : x
  2. Step 2: Convert to fraction form
    5,271.63/7,907.43 = 2,153.10/x
  3. Step 3: Cross multiply
    5,271.63x = 7,907.43 × 2,153.10
  4. Step 4: Simplify right side
    5,271.63x = 17,025,480.78
  5. Step 5: Solve for x
    x = 17,025,480.78/5,271.63
  6. Step 6: Final answer
    x = 3,229.64

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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.