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Finding the Fourth Proportional to 6,145.49, 9,218.21 and 1,528.49

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Solution

The fourth proportional to 6,145.49, 9,218.21 and 1,528.49 is: 2,292.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.49 : 9,218.21 = 1,528.49 : x
  2. Step 2: Convert to fraction form
    6,145.49/9,218.21 = 1,528.49/x
  3. Step 3: Cross multiply
    6,145.49x = 9,218.21 × 1,528.49
  4. Step 4: Simplify right side
    6,145.49x = 14,089,895.71
  5. Step 5: Solve for x
    x = 14,089,895.71/6,145.49
  6. Step 6: Final answer
    x = 2,292.72

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Double scale
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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.