Home / 7,271.40-10,028.70-4,619.46

Finding the Fourth Proportional to 7,271.40, 10,028.70 and 4,619.46

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Solution

The fourth proportional to 7,271.40, 10,028.70 and 4,619.46 is: 6,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.40 : 10,028.70 = 4,619.46 : x
  2. Step 2: Convert to fraction form
    7,271.40/10,028.70 = 4,619.46/x
  3. Step 3: Cross multiply
    7,271.40x = 10,028.70 × 4,619.46
  4. Step 4: Simplify right side
    7,271.40x = 46,327,178.50
  5. Step 5: Solve for x
    x = 46,327,178.50/7,271.40
  6. Step 6: Final answer
    x = 6,371.15

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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.