Home / 5,140.08-7,710.57-1,442.34

Finding the Fourth Proportional to 5,140.08, 7,710.57 and 1,442.34

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Solution

The fourth proportional to 5,140.08, 7,710.57 and 1,442.34 is: 2,163.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.08 : 7,710.57 = 1,442.34 : x
  2. Step 2: Convert to fraction form
    5,140.08/7,710.57 = 1,442.34/x
  3. Step 3: Cross multiply
    5,140.08x = 7,710.57 × 1,442.34
  4. Step 4: Simplify right side
    5,140.08x = 11,121,263.53
  5. Step 5: Solve for x
    x = 11,121,263.53/5,140.08
  6. Step 6: Final answer
    x = 2,163.64

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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.