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Finding the Fourth Proportional to 4,886.31, 7,332.74 and 1,808.31

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Solution

The fourth proportional to 4,886.31, 7,332.74 and 1,808.31 is: 2,713.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.31 : 7,332.74 = 1,808.31 : x
  2. Step 2: Convert to fraction form
    4,886.31/7,332.74 = 1,808.31/x
  3. Step 3: Cross multiply
    4,886.31x = 7,332.74 × 1,808.31
  4. Step 4: Simplify right side
    4,886.31x = 13,259,867.07
  5. Step 5: Solve for x
    x = 13,259,867.07/4,886.31
  6. Step 6: Final answer
    x = 2,713.68

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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.