Home / 3,235.58-4,853.38-1,287.78

Finding the Fourth Proportional to 3,235.58, 4,853.38 and 1,287.78

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Solution

The fourth proportional to 3,235.58, 4,853.38 and 1,287.78 is: 1,931.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,235.58 : 4,853.38 = 1,287.78 : x
  2. Step 2: Convert to fraction form
    3,235.58/4,853.38 = 1,287.78/x
  3. Step 3: Cross multiply
    3,235.58x = 4,853.38 × 1,287.78
  4. Step 4: Simplify right side
    3,235.58x = 6,250,085.70
  5. Step 5: Solve for x
    x = 6,250,085.70/3,235.58
  6. Step 6: Final answer
    x = 1,931.67

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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.