Home / 6,443.15-8,890.93-4,428.33

Finding the Fourth Proportional to 6,443.15, 8,890.93 and 4,428.33

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Solution

The fourth proportional to 6,443.15, 8,890.93 and 4,428.33 is: 6,110.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,443.15 : 8,890.93 = 4,428.33 : x
  2. Step 2: Convert to fraction form
    6,443.15/8,890.93 = 4,428.33/x
  3. Step 3: Cross multiply
    6,443.15x = 8,890.93 × 4,428.33
  4. Step 4: Simplify right side
    6,443.15x = 39,371,960.98
  5. Step 5: Solve for x
    x = 39,371,960.98/6,443.15
  6. Step 6: Final answer
    x = 6,110.67

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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.