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Finding the Fourth Proportional to 5,303.71, 7,955.46 and 1,408

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Solution

The fourth proportional to 5,303.71, 7,955.46 and 1,408 is: 2,111.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.71 : 7,955.46 = 1,408 : x
  2. Step 2: Convert to fraction form
    5,303.71/7,955.46 = 1,408/x
  3. Step 3: Cross multiply
    5,303.71x = 7,955.46 × 1,408
  4. Step 4: Simplify right side
    5,303.71x = 11,201,287.68
  5. Step 5: Solve for x
    x = 11,201,287.68/5,303.71
  6. Step 6: Final answer
    x = 2,111.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.