Home / 2,646.86-3,651.91-2,085.58

Finding the Fourth Proportional to 2,646.86, 3,651.91 and 2,085.58

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Solution

The fourth proportional to 2,646.86, 3,651.91 and 2,085.58 is: 2,877.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646.86 : 3,651.91 = 2,085.58 : x
  2. Step 2: Convert to fraction form
    2,646.86/3,651.91 = 2,085.58/x
  3. Step 3: Cross multiply
    2,646.86x = 3,651.91 × 2,085.58
  4. Step 4: Simplify right side
    2,646.86x = 7,616,336.11
  5. Step 5: Solve for x
    x = 7,616,336.11/2,646.86
  6. Step 6: Final answer
    x = 2,877.50

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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.