Home / 1,453.50-2,014.28-1,425.80

Finding the Fourth Proportional to 1,453.50, 2,014.28 and 1,425.80

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Solution

The fourth proportional to 1,453.50, 2,014.28 and 1,425.80 is: 1,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.50 : 2,014.28 = 1,425.80 : x
  2. Step 2: Convert to fraction form
    1,453.50/2,014.28 = 1,425.80/x
  3. Step 3: Cross multiply
    1,453.50x = 2,014.28 × 1,425.80
  4. Step 4: Simplify right side
    1,453.50x = 2,871,960.42
  5. Step 5: Solve for x
    x = 2,871,960.42/1,453.50
  6. Step 6: Final answer
    x = 1,975.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.