Home / 6,411.48-9,618.39-1,969.05

Finding the Fourth Proportional to 6,411.48, 9,618.39 and 1,969.05

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Solution

The fourth proportional to 6,411.48, 9,618.39 and 1,969.05 is: 2,953.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,411.48 : 9,618.39 = 1,969.05 : x
  2. Step 2: Convert to fraction form
    6,411.48/9,618.39 = 1,969.05/x
  3. Step 3: Cross multiply
    6,411.48x = 9,618.39 × 1,969.05
  4. Step 4: Simplify right side
    6,411.48x = 18,939,080.98
  5. Step 5: Solve for x
    x = 18,939,080.98/6,411.48
  6. Step 6: Final answer
    x = 2,953.93

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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.