Home / 5,209.23-7,188.93-2,970.75

Finding the Fourth Proportional to 5,209.23, 7,188.93 and 2,970.75

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Solution

The fourth proportional to 5,209.23, 7,188.93 and 2,970.75 is: 4,099.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.23 : 7,188.93 = 2,970.75 : x
  2. Step 2: Convert to fraction form
    5,209.23/7,188.93 = 2,970.75/x
  3. Step 3: Cross multiply
    5,209.23x = 7,188.93 × 2,970.75
  4. Step 4: Simplify right side
    5,209.23x = 21,356,513.80
  5. Step 5: Solve for x
    x = 21,356,513.80/5,209.23
  6. Step 6: Final answer
    x = 4,099.74

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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.