Home / 7,890.94-11,841-3,210.22

Finding the Fourth Proportional to 7,890.94, 11,841 and 3,210.22

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Solution

The fourth proportional to 7,890.94, 11,841 and 3,210.22 is: 4,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.94 : 11,841 = 3,210.22 : x
  2. Step 2: Convert to fraction form
    7,890.94/11,841 = 3,210.22/x
  3. Step 3: Cross multiply
    7,890.94x = 11,841 × 3,210.22
  4. Step 4: Simplify right side
    7,890.94x = 38,012,215.02
  5. Step 5: Solve for x
    x = 38,012,215.02/7,890.94
  6. Step 6: Final answer
    x = 4,817.20

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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.