Home / 2,872.40-4,311.63-1,702.35

Finding the Fourth Proportional to 2,872.40, 4,311.63 and 1,702.35

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Solution

The fourth proportional to 2,872.40, 4,311.63 and 1,702.35 is: 2,555.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.40 : 4,311.63 = 1,702.35 : x
  2. Step 2: Convert to fraction form
    2,872.40/4,311.63 = 1,702.35/x
  3. Step 3: Cross multiply
    2,872.40x = 4,311.63 × 1,702.35
  4. Step 4: Simplify right side
    2,872.40x = 7,339,903.33
  5. Step 5: Solve for x
    x = 7,339,903.33/2,872.40
  6. Step 6: Final answer
    x = 2,555.33

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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.