Home / 1,702.63-2,347.41-1,231.21

Finding the Fourth Proportional to 1,702.63, 2,347.41 and 1,231.21

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Solution

The fourth proportional to 1,702.63, 2,347.41 and 1,231.21 is: 1,697.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.63 : 2,347.41 = 1,231.21 : x
  2. Step 2: Convert to fraction form
    1,702.63/2,347.41 = 1,231.21/x
  3. Step 3: Cross multiply
    1,702.63x = 2,347.41 × 1,231.21
  4. Step 4: Simplify right side
    1,702.63x = 2,890,154.67
  5. Step 5: Solve for x
    x = 2,890,154.67/1,702.63
  6. Step 6: Final answer
    x = 1,697.46

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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.