Home / 3,421.40-4,721.46-2,005.93

Finding the Fourth Proportional to 3,421.40, 4,721.46 and 2,005.93

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Solution

The fourth proportional to 3,421.40, 4,721.46 and 2,005.93 is: 2,768.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.40 : 4,721.46 = 2,005.93 : x
  2. Step 2: Convert to fraction form
    3,421.40/4,721.46 = 2,005.93/x
  3. Step 3: Cross multiply
    3,421.40x = 4,721.46 × 2,005.93
  4. Step 4: Simplify right side
    3,421.40x = 9,470,918.26
  5. Step 5: Solve for x
    x = 9,470,918.26/3,421.40
  6. Step 6: Final answer
    x = 2,768.14

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1.5x scale

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.