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Finding the Fourth Proportional to 2,264.80, 3,400.40 and 1,778.40

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Solution

The fourth proportional to 2,264.80, 3,400.40 and 1,778.40 is: 2,670.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,264.80 : 3,400.40 = 1,778.40 : x
  2. Step 2: Convert to fraction form
    2,264.80/3,400.40 = 1,778.40/x
  3. Step 3: Cross multiply
    2,264.80x = 3,400.40 × 1,778.40
  4. Step 4: Simplify right side
    2,264.80x = 6,047,271.36
  5. Step 5: Solve for x
    x = 6,047,271.36/2,264.80
  6. Step 6: Final answer
    x = 2,670.11

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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.