Home / 2,069.04-3,100.80-1,808.40

Finding the Fourth Proportional to 2,069.04, 3,100.80 and 1,808.40

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Solution

The fourth proportional to 2,069.04, 3,100.80 and 1,808.40 is: 2,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.04 : 3,100.80 = 1,808.40 : x
  2. Step 2: Convert to fraction form
    2,069.04/3,100.80 = 1,808.40/x
  3. Step 3: Cross multiply
    2,069.04x = 3,100.80 × 1,808.40
  4. Step 4: Simplify right side
    2,069.04x = 5,607,486.72
  5. Step 5: Solve for x
    x = 5,607,486.72/2,069.04
  6. Step 6: Final answer
    x = 2,710.19

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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.