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Finding the Fourth Proportional to 1,808.03, 2,495.06 and 980.03

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Solution

The fourth proportional to 1,808.03, 2,495.06 and 980.03 is: 1,352.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.03 : 2,495.06 = 980.03 : x
  2. Step 2: Convert to fraction form
    1,808.03/2,495.06 = 980.03/x
  3. Step 3: Cross multiply
    1,808.03x = 2,495.06 × 980.03
  4. Step 4: Simplify right side
    1,808.03x = 2,445,228.75
  5. Step 5: Solve for x
    x = 2,445,228.75/1,808.03
  6. Step 6: Final answer
    x = 1,352.43

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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.