Home / 7,312.52-10,968.60-3,421.28

Finding the Fourth Proportional to 7,312.52, 10,968.60 and 3,421.28

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Solution

The fourth proportional to 7,312.52, 10,968.60 and 3,421.28 is: 5,131.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.52 : 10,968.60 = 3,421.28 : x
  2. Step 2: Convert to fraction form
    7,312.52/10,968.60 = 3,421.28/x
  3. Step 3: Cross multiply
    7,312.52x = 10,968.60 × 3,421.28
  4. Step 4: Simplify right side
    7,312.52x = 37,526,651.81
  5. Step 5: Solve for x
    x = 37,526,651.81/7,312.52
  6. Step 6: Final answer
    x = 5,131.84

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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.