Home / 2,319.39-3,200.76-1,271.45

Finding the Fourth Proportional to 2,319.39, 3,200.76 and 1,271.45

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Solution

The fourth proportional to 2,319.39, 3,200.76 and 1,271.45 is: 1,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.39 : 3,200.76 = 1,271.45 : x
  2. Step 2: Convert to fraction form
    2,319.39/3,200.76 = 1,271.45/x
  3. Step 3: Cross multiply
    2,319.39x = 3,200.76 × 1,271.45
  4. Step 4: Simplify right side
    2,319.39x = 4,069,590.30
  5. Step 5: Solve for x
    x = 4,069,590.30/2,319.39
  6. Step 6: Final answer
    x = 1,754.60

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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.