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Finding the Fourth Proportional to 1,768.77, 2,636.91 and 1,630.05

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Solution

The fourth proportional to 1,768.77, 2,636.91 and 1,630.05 is: 2,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.77 : 2,636.91 = 1,630.05 : x
  2. Step 2: Convert to fraction form
    1,768.77/2,636.91 = 1,630.05/x
  3. Step 3: Cross multiply
    1,768.77x = 2,636.91 × 1,630.05
  4. Step 4: Simplify right side
    1,768.77x = 4,298,295.15
  5. Step 5: Solve for x
    x = 4,298,295.15/1,768.77
  6. Step 6: Final answer
    x = 2,430.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.