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Finding the Fourth Proportional to 4,741.48, 6,529.94 and 4,639.40

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Solution

The fourth proportional to 4,741.48, 6,529.94 and 4,639.40 is: 6,389.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,741.48 : 6,529.94 = 4,639.40 : x
  2. Step 2: Convert to fraction form
    4,741.48/6,529.94 = 4,639.40/x
  3. Step 3: Cross multiply
    4,741.48x = 6,529.94 × 4,639.40
  4. Step 4: Simplify right side
    4,741.48x = 30,295,003.64
  5. Step 5: Solve for x
    x = 30,295,003.64/4,741.48
  6. Step 6: Final answer
    x = 6,389.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.