Home / 5,209.19-7,188.61-2,971.10

Finding the Fourth Proportional to 5,209.19, 7,188.61 and 2,971.10

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Solution

The fourth proportional to 5,209.19, 7,188.61 and 2,971.10 is: 4,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.19 : 7,188.61 = 2,971.10 : x
  2. Step 2: Convert to fraction form
    5,209.19/7,188.61 = 2,971.10/x
  3. Step 3: Cross multiply
    5,209.19x = 7,188.61 × 2,971.10
  4. Step 4: Simplify right side
    5,209.19x = 21,358,114.34
  5. Step 5: Solve for x
    x = 21,358,114.34/5,209.19
  6. Step 6: Final answer
    x = 4,100.08

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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.