Home / 2,379.48-3,284.58-2,130.35

Finding the Fourth Proportional to 2,379.48, 3,284.58 and 2,130.35

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Solution

The fourth proportional to 2,379.48, 3,284.58 and 2,130.35 is: 2,940.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.48 : 3,284.58 = 2,130.35 : x
  2. Step 2: Convert to fraction form
    2,379.48/3,284.58 = 2,130.35/x
  3. Step 3: Cross multiply
    2,379.48x = 3,284.58 × 2,130.35
  4. Step 4: Simplify right side
    2,379.48x = 6,997,288.58
  5. Step 5: Solve for x
    x = 6,997,288.58/2,379.48
  6. Step 6: Final answer
    x = 2,940.68

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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.