Home / 3,368.64-5,053.81-1,288.81

Finding the Fourth Proportional to 3,368.64, 5,053.81 and 1,288.81

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Solution

The fourth proportional to 3,368.64, 5,053.81 and 1,288.81 is: 1,933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.64 : 5,053.81 = 1,288.81 : x
  2. Step 2: Convert to fraction form
    3,368.64/5,053.81 = 1,288.81/x
  3. Step 3: Cross multiply
    3,368.64x = 5,053.81 × 1,288.81
  4. Step 4: Simplify right side
    3,368.64x = 6,513,409.10
  5. Step 5: Solve for x
    x = 6,513,409.10/3,368.64
  6. Step 6: Final answer
    x = 1,933.54

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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.