Home / 5,124.36-7,071.98-2,855.87

Finding the Fourth Proportional to 5,124.36, 7,071.98 and 2,855.87

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Solution

The fourth proportional to 5,124.36, 7,071.98 and 2,855.87 is: 3,941.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.36 : 7,071.98 = 2,855.87 : x
  2. Step 2: Convert to fraction form
    5,124.36/7,071.98 = 2,855.87/x
  3. Step 3: Cross multiply
    5,124.36x = 7,071.98 × 2,855.87
  4. Step 4: Simplify right side
    5,124.36x = 20,196,672.18
  5. Step 5: Solve for x
    x = 20,196,672.18/5,124.36
  6. Step 6: Final answer
    x = 3,941.30

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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.