Home / 3,115.36-4,300.56-2,068.32

Finding the Fourth Proportional to 3,115.36, 4,300.56 and 2,068.32

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Solution

The fourth proportional to 3,115.36, 4,300.56 and 2,068.32 is: 2,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.36 : 4,300.56 = 2,068.32 : x
  2. Step 2: Convert to fraction form
    3,115.36/4,300.56 = 2,068.32/x
  3. Step 3: Cross multiply
    3,115.36x = 4,300.56 × 2,068.32
  4. Step 4: Simplify right side
    3,115.36x = 8,894,934.26
  5. Step 5: Solve for x
    x = 8,894,934.26/3,115.36
  6. Step 6: Final answer
    x = 2,855.19

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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.