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Finding the Fourth Proportional to 3,435.77, 5,152.95 and 1,678.97

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Solution

The fourth proportional to 3,435.77, 5,152.95 and 1,678.97 is: 2,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.77 : 5,152.95 = 1,678.97 : x
  2. Step 2: Convert to fraction form
    3,435.77/5,152.95 = 1,678.97/x
  3. Step 3: Cross multiply
    3,435.77x = 5,152.95 × 1,678.97
  4. Step 4: Simplify right side
    3,435.77x = 8,651,661.34
  5. Step 5: Solve for x
    x = 8,651,661.34/3,435.77
  6. Step 6: Final answer
    x = 2,518.11

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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.