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Finding the Fourth Proportional to 5,640.63, 8,460.94 and 1,536.63

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Solution

The fourth proportional to 5,640.63, 8,460.94 and 1,536.63 is: 2,304.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.63 : 8,460.94 = 1,536.63 : x
  2. Step 2: Convert to fraction form
    5,640.63/8,460.94 = 1,536.63/x
  3. Step 3: Cross multiply
    5,640.63x = 8,460.94 × 1,536.63
  4. Step 4: Simplify right side
    5,640.63x = 13,001,288.09
  5. Step 5: Solve for x
    x = 13,001,288.09/5,640.63
  6. Step 6: Final answer
    x = 2,304.94

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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.