Home / 2,430.73-3,640.29-1,257.58

Finding the Fourth Proportional to 2,430.73, 3,640.29 and 1,257.58

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Solution

The fourth proportional to 2,430.73, 3,640.29 and 1,257.58 is: 1,883.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.73 : 3,640.29 = 1,257.58 : x
  2. Step 2: Convert to fraction form
    2,430.73/3,640.29 = 1,257.58/x
  3. Step 3: Cross multiply
    2,430.73x = 3,640.29 × 1,257.58
  4. Step 4: Simplify right side
    2,430.73x = 4,577,955.90
  5. Step 5: Solve for x
    x = 4,577,955.90/2,430.73
  6. Step 6: Final answer
    x = 1,883.37

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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.