Home / 3,135.10-4,702.65-2,098.30

Finding the Fourth Proportional to 3,135.10, 4,702.65 and 2,098.30

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Solution

The fourth proportional to 3,135.10, 4,702.65 and 2,098.30 is: 3,147.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.10 : 4,702.65 = 2,098.30 : x
  2. Step 2: Convert to fraction form
    3,135.10/4,702.65 = 2,098.30/x
  3. Step 3: Cross multiply
    3,135.10x = 4,702.65 × 2,098.30
  4. Step 4: Simplify right side
    3,135.10x = 9,867,570.50
  5. Step 5: Solve for x
    x = 9,867,570.50/3,135.10
  6. Step 6: Final answer
    x = 3,147.45

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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.