Home / 2,817.90-4,225.02-1,257.84

Finding the Fourth Proportional to 2,817.90, 4,225.02 and 1,257.84

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Solution

The fourth proportional to 2,817.90, 4,225.02 and 1,257.84 is: 1,885.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.90 : 4,225.02 = 1,257.84 : x
  2. Step 2: Convert to fraction form
    2,817.90/4,225.02 = 1,257.84/x
  3. Step 3: Cross multiply
    2,817.90x = 4,225.02 × 1,257.84
  4. Step 4: Simplify right side
    2,817.90x = 5,314,399.16
  5. Step 5: Solve for x
    x = 5,314,399.16/2,817.90
  6. Step 6: Final answer
    x = 1,885.94

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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.