Home / 3,051.36-4,208.40-2,386.80

Finding the Fourth Proportional to 3,051.36, 4,208.40 and 2,386.80

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Solution

The fourth proportional to 3,051.36, 4,208.40 and 2,386.80 is: 3,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.36 : 4,208.40 = 2,386.80 : x
  2. Step 2: Convert to fraction form
    3,051.36/4,208.40 = 2,386.80/x
  3. Step 3: Cross multiply
    3,051.36x = 4,208.40 × 2,386.80
  4. Step 4: Simplify right side
    3,051.36x = 10,044,609.12
  5. Step 5: Solve for x
    x = 10,044,609.12/3,051.36
  6. Step 6: Final answer
    x = 3,291.85

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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.