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Finding the Fourth Proportional to 6,389.63, 9,598.42 and 4,552.55

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Solution

The fourth proportional to 6,389.63, 9,598.42 and 4,552.55 is: 6,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.63 : 9,598.42 = 4,552.55 : x
  2. Step 2: Convert to fraction form
    6,389.63/9,598.42 = 4,552.55/x
  3. Step 3: Cross multiply
    6,389.63x = 9,598.42 × 4,552.55
  4. Step 4: Simplify right side
    6,389.63x = 43,697,347.46
  5. Step 5: Solve for x
    x = 43,697,347.46/6,389.63
  6. Step 6: Final answer
    x = 6,838.79

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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.