Home / 4,103.98-6,156.35-1,638.20

Finding the Fourth Proportional to 4,103.98, 6,156.35 and 1,638.20

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Solution

The fourth proportional to 4,103.98, 6,156.35 and 1,638.20 is: 2,457.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,103.98 : 6,156.35 = 1,638.20 : x
  2. Step 2: Convert to fraction form
    4,103.98/6,156.35 = 1,638.20/x
  3. Step 3: Cross multiply
    4,103.98x = 6,156.35 × 1,638.20
  4. Step 4: Simplify right side
    4,103.98x = 10,085,332.57
  5. Step 5: Solve for x
    x = 10,085,332.57/4,103.98
  6. Step 6: Final answer
    x = 2,457.45

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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.