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Finding the Fourth Proportional to 7,502.40, 11,253.60 and 2,570.40

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Solution

The fourth proportional to 7,502.40, 11,253.60 and 2,570.40 is: 3,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,502.40 : 11,253.60 = 2,570.40 : x
  2. Step 2: Convert to fraction form
    7,502.40/11,253.60 = 2,570.40/x
  3. Step 3: Cross multiply
    7,502.40x = 11,253.60 × 2,570.40
  4. Step 4: Simplify right side
    7,502.40x = 28,926,253.44
  5. Step 5: Solve for x
    x = 28,926,253.44/7,502.40
  6. Step 6: Final answer
    x = 3,855.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.