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Finding the Fourth Proportional to 7,069.81, 10,602.96 and 2,389.71

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Solution

The fourth proportional to 7,069.81, 10,602.96 and 2,389.71 is: 3,583.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.81 : 10,602.96 = 2,389.71 : x
  2. Step 2: Convert to fraction form
    7,069.81/10,602.96 = 2,389.71/x
  3. Step 3: Cross multiply
    7,069.81x = 10,602.96 × 2,389.71
  4. Step 4: Simplify right side
    7,069.81x = 25,338,020.07
  5. Step 5: Solve for x
    x = 25,338,020.07/7,069.81
  6. Step 6: Final answer
    x = 3,583.98

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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.