Home / 5,210.85-7,191.09-2,853.03

Finding the Fourth Proportional to 5,210.85, 7,191.09 and 2,853.03

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Solution

The fourth proportional to 5,210.85, 7,191.09 and 2,853.03 is: 3,937.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.85 : 7,191.09 = 2,853.03 : x
  2. Step 2: Convert to fraction form
    5,210.85/7,191.09 = 2,853.03/x
  3. Step 3: Cross multiply
    5,210.85x = 7,191.09 × 2,853.03
  4. Step 4: Simplify right side
    5,210.85x = 20,516,395.50
  5. Step 5: Solve for x
    x = 20,516,395.50/5,210.85
  6. Step 6: Final answer
    x = 3,937.25

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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.