Home / 4,638.40-6,958.48-1,865.30

Finding the Fourth Proportional to 4,638.40, 6,958.48 and 1,865.30

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Solution

The fourth proportional to 4,638.40, 6,958.48 and 1,865.30 is: 2,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.40 : 6,958.48 = 1,865.30 : x
  2. Step 2: Convert to fraction form
    4,638.40/6,958.48 = 1,865.30/x
  3. Step 3: Cross multiply
    4,638.40x = 6,958.48 × 1,865.30
  4. Step 4: Simplify right side
    4,638.40x = 12,979,652.74
  5. Step 5: Solve for x
    x = 12,979,652.74/4,638.40
  6. Step 6: Final answer
    x = 2,798.30

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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.