Home / 4,210.57-6,317-1,288.81

Finding the Fourth Proportional to 4,210.57, 6,317 and 1,288.81

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Solution

The fourth proportional to 4,210.57, 6,317 and 1,288.81 is: 1,933.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.57 : 6,317 = 1,288.81 : x
  2. Step 2: Convert to fraction form
    4,210.57/6,317 = 1,288.81/x
  3. Step 3: Cross multiply
    4,210.57x = 6,317 × 1,288.81
  4. Step 4: Simplify right side
    4,210.57x = 8,141,412.77
  5. Step 5: Solve for x
    x = 8,141,412.77/4,210.57
  6. Step 6: Final answer
    x = 1,933.57

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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.