Home / 7,890.19-10,887.98-4,305.17

Finding the Fourth Proportional to 7,890.19, 10,887.98 and 4,305.17

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Solution

The fourth proportional to 7,890.19, 10,887.98 and 4,305.17 is: 5,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.19 : 10,887.98 = 4,305.17 : x
  2. Step 2: Convert to fraction form
    7,890.19/10,887.98 = 4,305.17/x
  3. Step 3: Cross multiply
    7,890.19x = 10,887.98 × 4,305.17
  4. Step 4: Simplify right side
    7,890.19x = 46,874,610.55
  5. Step 5: Solve for x
    x = 46,874,610.55/7,890.19
  6. Step 6: Final answer
    x = 5,940.87

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Double scale
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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.