Home / 6,971.40-9,620.19-4,287.06

Finding the Fourth Proportional to 6,971.40, 9,620.19 and 4,287.06

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Solution

The fourth proportional to 6,971.40, 9,620.19 and 4,287.06 is: 5,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971.40 : 9,620.19 = 4,287.06 : x
  2. Step 2: Convert to fraction form
    6,971.40/9,620.19 = 4,287.06/x
  3. Step 3: Cross multiply
    6,971.40x = 9,620.19 × 4,287.06
  4. Step 4: Simplify right side
    6,971.40x = 41,242,331.74
  5. Step 5: Solve for x
    x = 41,242,331.74/6,971.40
  6. Step 6: Final answer
    x = 5,915.93

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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.