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Finding the Fourth Proportional to 3,595.68, 5,395.68 and 1,287.36

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Solution

The fourth proportional to 3,595.68, 5,395.68 and 1,287.36 is: 1,931.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,595.68 : 5,395.68 = 1,287.36 : x
  2. Step 2: Convert to fraction form
    3,595.68/5,395.68 = 1,287.36/x
  3. Step 3: Cross multiply
    3,595.68x = 5,395.68 × 1,287.36
  4. Step 4: Simplify right side
    3,595.68x = 6,946,182.60
  5. Step 5: Solve for x
    x = 6,946,182.60/3,595.68
  6. Step 6: Final answer
    x = 1,931.81

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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.