Home / 5,870.47-8,805.57-2,172.28

Finding the Fourth Proportional to 5,870.47, 8,805.57 and 2,172.28

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Solution

The fourth proportional to 5,870.47, 8,805.57 and 2,172.28 is: 3,258.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870.47 : 8,805.57 = 2,172.28 : x
  2. Step 2: Convert to fraction form
    5,870.47/8,805.57 = 2,172.28/x
  3. Step 3: Cross multiply
    5,870.47x = 8,805.57 × 2,172.28
  4. Step 4: Simplify right side
    5,870.47x = 19,128,163.60
  5. Step 5: Solve for x
    x = 19,128,163.60/5,870.47
  6. Step 6: Final answer
    x = 3,258.37

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1.5x scale

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.