Home / 4,425.40-6,638.10-1,503.80

Finding the Fourth Proportional to 4,425.40, 6,638.10 and 1,503.80

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Solution

The fourth proportional to 4,425.40, 6,638.10 and 1,503.80 is: 2,255.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,425.40 : 6,638.10 = 1,503.80 : x
  2. Step 2: Convert to fraction form
    4,425.40/6,638.10 = 1,503.80/x
  3. Step 3: Cross multiply
    4,425.40x = 6,638.10 × 1,503.80
  4. Step 4: Simplify right side
    4,425.40x = 9,982,374.78
  5. Step 5: Solve for x
    x = 9,982,374.78/4,425.40
  6. Step 6: Final answer
    x = 2,255.70

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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.