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Finding the Fourth Proportional to 2,628.42, 3,943.35 and 897.18

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Solution

The fourth proportional to 2,628.42, 3,943.35 and 897.18 is: 1,346.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.42 : 3,943.35 = 897.18 : x
  2. Step 2: Convert to fraction form
    2,628.42/3,943.35 = 897.18/x
  3. Step 3: Cross multiply
    2,628.42x = 3,943.35 × 897.18
  4. Step 4: Simplify right side
    2,628.42x = 3,537,894.75
  5. Step 5: Solve for x
    x = 3,537,894.75/2,628.42
  6. Step 6: Final answer
    x = 1,346.02

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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.