Home / 4,210.98-6,317.02-1,288.78

Finding the Fourth Proportional to 4,210.98, 6,317.02 and 1,288.78

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Solution

The fourth proportional to 4,210.98, 6,317.02 and 1,288.78 is: 1,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.98 : 6,317.02 = 1,288.78 : x
  2. Step 2: Convert to fraction form
    4,210.98/6,317.02 = 1,288.78/x
  3. Step 3: Cross multiply
    4,210.98x = 6,317.02 × 1,288.78
  4. Step 4: Simplify right side
    4,210.98x = 8,141,249.04
  5. Step 5: Solve for x
    x = 8,141,249.04/4,210.98
  6. Step 6: Final answer
    x = 1,933.34

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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.