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Finding the Fourth Proportional to 6,303.61, 9,456.94 and 1,920.80

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Solution

The fourth proportional to 6,303.61, 9,456.94 and 1,920.80 is: 2,881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,303.61 : 9,456.94 = 1,920.80 : x
  2. Step 2: Convert to fraction form
    6,303.61/9,456.94 = 1,920.80/x
  3. Step 3: Cross multiply
    6,303.61x = 9,456.94 × 1,920.80
  4. Step 4: Simplify right side
    6,303.61x = 18,164,905.59
  5. Step 5: Solve for x
    x = 18,164,905.59/6,303.61
  6. Step 6: Final answer
    x = 2,881.67

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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.