Home / 3,913.47-5,870.19-2,158.39

Finding the Fourth Proportional to 3,913.47, 5,870.19 and 2,158.39

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Solution

The fourth proportional to 3,913.47, 5,870.19 and 2,158.39 is: 3,237.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.47 : 5,870.19 = 2,158.39 : x
  2. Step 2: Convert to fraction form
    3,913.47/5,870.19 = 2,158.39/x
  3. Step 3: Cross multiply
    3,913.47x = 5,870.19 × 2,158.39
  4. Step 4: Simplify right side
    3,913.47x = 12,670,159.39
  5. Step 5: Solve for x
    x = 12,670,159.39/3,913.47
  6. Step 6: Final answer
    x = 3,237.58

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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.