Home / 3,970.01-5,477.83-2,398.11

Finding the Fourth Proportional to 3,970.01, 5,477.83 and 2,398.11

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Solution

The fourth proportional to 3,970.01, 5,477.83 and 2,398.11 is: 3,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.01 : 5,477.83 = 2,398.11 : x
  2. Step 2: Convert to fraction form
    3,970.01/5,477.83 = 2,398.11/x
  3. Step 3: Cross multiply
    3,970.01x = 5,477.83 × 2,398.11
  4. Step 4: Simplify right side
    3,970.01x = 13,136,412.36
  5. Step 5: Solve for x
    x = 13,136,412.36/3,970.01
  6. Step 6: Final answer
    x = 3,308.91

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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.