Home / 5,210.76-7,191.20-2,973.08

Finding the Fourth Proportional to 5,210.76, 7,191.20 and 2,973.08

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Solution

The fourth proportional to 5,210.76, 7,191.20 and 2,973.08 is: 4,103.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.76 : 7,191.20 = 2,973.08 : x
  2. Step 2: Convert to fraction form
    5,210.76/7,191.20 = 2,973.08/x
  3. Step 3: Cross multiply
    5,210.76x = 7,191.20 × 2,973.08
  4. Step 4: Simplify right side
    5,210.76x = 21,380,012.90
  5. Step 5: Solve for x
    x = 21,380,012.90/5,210.76
  6. Step 6: Final answer
    x = 4,103.05

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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.