Home / 7,890.48-10,889.37-4,353.69

Finding the Fourth Proportional to 7,890.48, 10,889.37 and 4,353.69

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Solution

The fourth proportional to 7,890.48, 10,889.37 and 4,353.69 is: 6,008.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.48 : 10,889.37 = 4,353.69 : x
  2. Step 2: Convert to fraction form
    7,890.48/10,889.37 = 4,353.69/x
  3. Step 3: Cross multiply
    7,890.48x = 10,889.37 × 4,353.69
  4. Step 4: Simplify right side
    7,890.48x = 47,408,941.28
  5. Step 5: Solve for x
    x = 47,408,941.28/7,890.48
  6. Step 6: Final answer
    x = 6,008.37

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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.