Home / 1,342.95-2,014.38-1,271.87

Finding the Fourth Proportional to 1,342.95, 2,014.38 and 1,271.87

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Solution

The fourth proportional to 1,342.95, 2,014.38 and 1,271.87 is: 1,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.95 : 2,014.38 = 1,271.87 : x
  2. Step 2: Convert to fraction form
    1,342.95/2,014.38 = 1,271.87/x
  3. Step 3: Cross multiply
    1,342.95x = 2,014.38 × 1,271.87
  4. Step 4: Simplify right side
    1,342.95x = 2,562,019.42
  5. Step 5: Solve for x
    x = 2,562,019.42/1,342.95
  6. Step 6: Final answer
    x = 1,907.75

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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.