Home / 2,454.08-3,386.40-1,668.80

Finding the Fourth Proportional to 2,454.08, 3,386.40 and 1,668.80

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Solution

The fourth proportional to 2,454.08, 3,386.40 and 1,668.80 is: 2,302.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.08 : 3,386.40 = 1,668.80 : x
  2. Step 2: Convert to fraction form
    2,454.08/3,386.40 = 1,668.80/x
  3. Step 3: Cross multiply
    2,454.08x = 3,386.40 × 1,668.80
  4. Step 4: Simplify right side
    2,454.08x = 5,651,224.32
  5. Step 5: Solve for x
    x = 5,651,224.32/2,454.08
  6. Step 6: Final answer
    x = 2,302.79

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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.