Home / 4,218.89-6,328.32-1,140.89

Finding the Fourth Proportional to 4,218.89, 6,328.32 and 1,140.89

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Solution

The fourth proportional to 4,218.89, 6,328.32 and 1,140.89 is: 1,711.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.89 : 6,328.32 = 1,140.89 : x
  2. Step 2: Convert to fraction form
    4,218.89/6,328.32 = 1,140.89/x
  3. Step 3: Cross multiply
    4,218.89x = 6,328.32 × 1,140.89
  4. Step 4: Simplify right side
    4,218.89x = 7,219,917.00
  5. Step 5: Solve for x
    x = 7,219,917.00/4,218.89
  6. Step 6: Final answer
    x = 1,711.33

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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.