Home / 5,628.76-8,443.58-1,679.72

Finding the Fourth Proportional to 5,628.76, 8,443.58 and 1,679.72

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Solution

The fourth proportional to 5,628.76, 8,443.58 and 1,679.72 is: 2,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.76 : 8,443.58 = 1,679.72 : x
  2. Step 2: Convert to fraction form
    5,628.76/8,443.58 = 1,679.72/x
  3. Step 3: Cross multiply
    5,628.76x = 8,443.58 × 1,679.72
  4. Step 4: Simplify right side
    5,628.76x = 14,182,799.58
  5. Step 5: Solve for x
    x = 14,182,799.58/5,628.76
  6. Step 6: Final answer
    x = 2,519.70

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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.