Home / 7,271.88-10,035.84-4,128

Finding the Fourth Proportional to 7,271.88, 10,035.84 and 4,128

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Solution

The fourth proportional to 7,271.88, 10,035.84 and 4,128 is: 5,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.88 : 10,035.84 = 4,128 : x
  2. Step 2: Convert to fraction form
    7,271.88/10,035.84 = 4,128/x
  3. Step 3: Cross multiply
    7,271.88x = 10,035.84 × 4,128
  4. Step 4: Simplify right side
    7,271.88x = 41,427,947.52
  5. Step 5: Solve for x
    x = 41,427,947.52/7,271.88
  6. Step 6: Final answer
    x = 5,697.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.