Home / 4,188.36-6,281.40-1,266.76

Finding the Fourth Proportional to 4,188.36, 6,281.40 and 1,266.76

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Solution

The fourth proportional to 4,188.36, 6,281.40 and 1,266.76 is: 1,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.36 : 6,281.40 = 1,266.76 : x
  2. Step 2: Convert to fraction form
    4,188.36/6,281.40 = 1,266.76/x
  3. Step 3: Cross multiply
    4,188.36x = 6,281.40 × 1,266.76
  4. Step 4: Simplify right side
    4,188.36x = 7,957,026.26
  5. Step 5: Solve for x
    x = 7,957,026.26/4,188.36
  6. Step 6: Final answer
    x = 1,899.80

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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.