Home / 2,830.32-4,246.41-1,271.40

Finding the Fourth Proportional to 2,830.32, 4,246.41 and 1,271.40

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Solution

The fourth proportional to 2,830.32, 4,246.41 and 1,271.40 is: 1,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.32 : 4,246.41 = 1,271.40 : x
  2. Step 2: Convert to fraction form
    2,830.32/4,246.41 = 1,271.40/x
  3. Step 3: Cross multiply
    2,830.32x = 4,246.41 × 1,271.40
  4. Step 4: Simplify right side
    2,830.32x = 5,398,885.67
  5. Step 5: Solve for x
    x = 5,398,885.67/2,830.32
  6. Step 6: Final answer
    x = 1,907.52

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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.