Home / 5,258.96-7,887.36-1,971.92

Finding the Fourth Proportional to 5,258.96, 7,887.36 and 1,971.92

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Solution

The fourth proportional to 5,258.96, 7,887.36 and 1,971.92 is: 2,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258.96 : 7,887.36 = 1,971.92 : x
  2. Step 2: Convert to fraction form
    5,258.96/7,887.36 = 1,971.92/x
  3. Step 3: Cross multiply
    5,258.96x = 7,887.36 × 1,971.92
  4. Step 4: Simplify right side
    5,258.96x = 15,553,242.93
  5. Step 5: Solve for x
    x = 15,553,242.93/5,258.96
  6. Step 6: Final answer
    x = 2,957.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.