Home / 2,319.08-3,200.24-1,271.12

Finding the Fourth Proportional to 2,319.08, 3,200.24 and 1,271.12

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Solution

The fourth proportional to 2,319.08, 3,200.24 and 1,271.12 is: 1,754.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.08 : 3,200.24 = 1,271.12 : x
  2. Step 2: Convert to fraction form
    2,319.08/3,200.24 = 1,271.12/x
  3. Step 3: Cross multiply
    2,319.08x = 3,200.24 × 1,271.12
  4. Step 4: Simplify right side
    2,319.08x = 4,067,889.07
  5. Step 5: Solve for x
    x = 4,067,889.07/2,319.08
  6. Step 6: Final answer
    x = 1,754.10

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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.