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Finding the Fourth Proportional to 2,840.76, 4,255.62 and 1,604.34

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Solution

The fourth proportional to 2,840.76, 4,255.62 and 1,604.34 is: 2,403.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.76 : 4,255.62 = 1,604.34 : x
  2. Step 2: Convert to fraction form
    2,840.76/4,255.62 = 1,604.34/x
  3. Step 3: Cross multiply
    2,840.76x = 4,255.62 × 1,604.34
  4. Step 4: Simplify right side
    2,840.76x = 6,827,461.39
  5. Step 5: Solve for x
    x = 6,827,461.39/2,840.76
  6. Step 6: Final answer
    x = 2,403.39

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1.5x scale

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.