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Finding the Fourth Proportional to 4,887.10, 7,330.64 and 1,964.72

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Solution

The fourth proportional to 4,887.10, 7,330.64 and 1,964.72 is: 2,947.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.10 : 7,330.64 = 1,964.72 : x
  2. Step 2: Convert to fraction form
    4,887.10/7,330.64 = 1,964.72/x
  3. Step 3: Cross multiply
    4,887.10x = 7,330.64 × 1,964.72
  4. Step 4: Simplify right side
    4,887.10x = 14,402,618.37
  5. Step 5: Solve for x
    x = 14,402,618.37/4,887.10
  6. Step 6: Final answer
    x = 2,947.07

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Similar ratio
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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.