Home / 5,316.08-7,974.16-1,420.44

Finding the Fourth Proportional to 5,316.08, 7,974.16 and 1,420.44

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Solution

The fourth proportional to 5,316.08, 7,974.16 and 1,420.44 is: 2,130.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.08 : 7,974.16 = 1,420.44 : x
  2. Step 2: Convert to fraction form
    5,316.08/7,974.16 = 1,420.44/x
  3. Step 3: Cross multiply
    5,316.08x = 7,974.16 × 1,420.44
  4. Step 4: Simplify right side
    5,316.08x = 11,326,815.83
  5. Step 5: Solve for x
    x = 11,326,815.83/5,316.08
  6. Step 6: Final answer
    x = 2,130.67

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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.