Home / 5,325.81-7,988.58-2,205

Finding the Fourth Proportional to 5,325.81, 7,988.58 and 2,205

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Solution

The fourth proportional to 5,325.81, 7,988.58 and 2,205 is: 3,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.81 : 7,988.58 = 2,205 : x
  2. Step 2: Convert to fraction form
    5,325.81/7,988.58 = 2,205/x
  3. Step 3: Cross multiply
    5,325.81x = 7,988.58 × 2,205
  4. Step 4: Simplify right side
    5,325.81x = 17,614,818.90
  5. Step 5: Solve for x
    x = 17,614,818.90/5,325.81
  6. Step 6: Final answer
    x = 3,307.44

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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.