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Finding the Fourth Proportional to 7,889.82, 10,887.03 and 4,746.30

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Solution

The fourth proportional to 7,889.82, 10,887.03 and 4,746.30 is: 6,549.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.82 : 10,887.03 = 4,746.30 : x
  2. Step 2: Convert to fraction form
    7,889.82/10,887.03 = 4,746.30/x
  3. Step 3: Cross multiply
    7,889.82x = 10,887.03 × 4,746.30
  4. Step 4: Simplify right side
    7,889.82x = 51,673,110.49
  5. Step 5: Solve for x
    x = 51,673,110.49/7,889.82
  6. Step 6: Final answer
    x = 6,549.34

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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.