Home / 5,815.58-8,021.90-5,071.32

Finding the Fourth Proportional to 5,815.58, 8,021.90 and 5,071.32

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Solution

The fourth proportional to 5,815.58, 8,021.90 and 5,071.32 is: 6,995.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.58 : 8,021.90 = 5,071.32 : x
  2. Step 2: Convert to fraction form
    5,815.58/8,021.90 = 5,071.32/x
  3. Step 3: Cross multiply
    5,815.58x = 8,021.90 × 5,071.32
  4. Step 4: Simplify right side
    5,815.58x = 40,681,621.91
  5. Step 5: Solve for x
    x = 40,681,621.91/5,815.58
  6. Step 6: Final answer
    x = 6,995.28

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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.