Home / 5,628.40-8,442.78-1,930.58

Finding the Fourth Proportional to 5,628.40, 8,442.78 and 1,930.58

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Solution

The fourth proportional to 5,628.40, 8,442.78 and 1,930.58 is: 2,895.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.40 : 8,442.78 = 1,930.58 : x
  2. Step 2: Convert to fraction form
    5,628.40/8,442.78 = 1,930.58/x
  3. Step 3: Cross multiply
    5,628.40x = 8,442.78 × 1,930.58
  4. Step 4: Simplify right side
    5,628.40x = 16,299,446.03
  5. Step 5: Solve for x
    x = 16,299,446.03/5,628.40
  6. Step 6: Final answer
    x = 2,895.93

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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.