Home / 2,257.60-3,386.40-2,243.20

Finding the Fourth Proportional to 2,257.60, 3,386.40 and 2,243.20

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Solution

The fourth proportional to 2,257.60, 3,386.40 and 2,243.20 is: 3,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.60 : 3,386.40 = 2,243.20 : x
  2. Step 2: Convert to fraction form
    2,257.60/3,386.40 = 2,243.20/x
  3. Step 3: Cross multiply
    2,257.60x = 3,386.40 × 2,243.20
  4. Step 4: Simplify right side
    2,257.60x = 7,596,372.48
  5. Step 5: Solve for x
    x = 7,596,372.48/2,257.60
  6. Step 6: Final answer
    x = 3,364.80

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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.