Home / 2,456.90-3,386.94-1,866.41

Finding the Fourth Proportional to 2,456.90, 3,386.94 and 1,866.41

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Solution

The fourth proportional to 2,456.90, 3,386.94 and 1,866.41 is: 2,572.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.90 : 3,386.94 = 1,866.41 : x
  2. Step 2: Convert to fraction form
    2,456.90/3,386.94 = 1,866.41/x
  3. Step 3: Cross multiply
    2,456.90x = 3,386.94 × 1,866.41
  4. Step 4: Simplify right side
    2,456.90x = 6,321,418.69
  5. Step 5: Solve for x
    x = 6,321,418.69/2,456.90
  6. Step 6: Final answer
    x = 2,572.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.