Home / 3,390.06-4,678.29-1,898.00

Finding the Fourth Proportional to 3,390.06, 4,678.29 and 1,898.00

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Solution

The fourth proportional to 3,390.06, 4,678.29 and 1,898.00 is: 2,619.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.06 : 4,678.29 = 1,898.00 : x
  2. Step 2: Convert to fraction form
    3,390.06/4,678.29 = 1,898.00/x
  3. Step 3: Cross multiply
    3,390.06x = 4,678.29 × 1,898.00
  4. Step 4: Simplify right side
    3,390.06x = 8,879,400.44
  5. Step 5: Solve for x
    x = 8,879,400.44/3,390.06
  6. Step 6: Final answer
    x = 2,619.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.