Home / 2,319.32-3,200.66-1,271.40

Finding the Fourth Proportional to 2,319.32, 3,200.66 and 1,271.40

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Solution

The fourth proportional to 2,319.32, 3,200.66 and 1,271.40 is: 1,754.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.32 : 3,200.66 = 1,271.40 : x
  2. Step 2: Convert to fraction form
    2,319.32/3,200.66 = 1,271.40/x
  3. Step 3: Cross multiply
    2,319.32x = 3,200.66 × 1,271.40
  4. Step 4: Simplify right side
    2,319.32x = 4,069,319.12
  5. Step 5: Solve for x
    x = 4,069,319.12/2,319.32
  6. Step 6: Final answer
    x = 1,754.53

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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.