Home / 5,245.67-7,869.86-1,547.75

Finding the Fourth Proportional to 5,245.67, 7,869.86 and 1,547.75

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Solution

The fourth proportional to 5,245.67, 7,869.86 and 1,547.75 is: 2,322.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.67 : 7,869.86 = 1,547.75 : x
  2. Step 2: Convert to fraction form
    5,245.67/7,869.86 = 1,547.75/x
  3. Step 3: Cross multiply
    5,245.67x = 7,869.86 × 1,547.75
  4. Step 4: Simplify right side
    5,245.67x = 12,180,528.73
  5. Step 5: Solve for x
    x = 12,180,528.73/5,245.67
  6. Step 6: Final answer
    x = 2,322.02

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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.