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Finding the Fourth Proportional to 7,245.67, 10,870.70 and 3,030.97

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Solution

The fourth proportional to 7,245.67, 10,870.70 and 3,030.97 is: 4,547.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.67 : 10,870.70 = 3,030.97 : x
  2. Step 2: Convert to fraction form
    7,245.67/10,870.70 = 3,030.97/x
  3. Step 3: Cross multiply
    7,245.67x = 10,870.70 × 3,030.97
  4. Step 4: Simplify right side
    7,245.67x = 32,948,765.58
  5. Step 5: Solve for x
    x = 32,948,765.58/7,245.67
  6. Step 6: Final answer
    x = 4,547.37

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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.