Home / 3,405.03-4,698.60-1,913.13

Finding the Fourth Proportional to 3,405.03, 4,698.60 and 1,913.13

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Solution

The fourth proportional to 3,405.03, 4,698.60 and 1,913.13 is: 2,639.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.03 : 4,698.60 = 1,913.13 : x
  2. Step 2: Convert to fraction form
    3,405.03/4,698.60 = 1,913.13/x
  3. Step 3: Cross multiply
    3,405.03x = 4,698.60 × 1,913.13
  4. Step 4: Simplify right side
    3,405.03x = 8,989,032.62
  5. Step 5: Solve for x
    x = 8,989,032.62/3,405.03
  6. Step 6: Final answer
    x = 2,639.93

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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.