Home / 7,901.51-10,906.25-4,915.56

Finding the Fourth Proportional to 7,901.51, 10,906.25 and 4,915.56

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Solution

The fourth proportional to 7,901.51, 10,906.25 and 4,915.56 is: 6,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.51 : 10,906.25 = 4,915.56 : x
  2. Step 2: Convert to fraction form
    7,901.51/10,906.25 = 4,915.56/x
  3. Step 3: Cross multiply
    7,901.51x = 10,906.25 × 4,915.56
  4. Step 4: Simplify right side
    7,901.51x = 53,610,326.25
  5. Step 5: Solve for x
    x = 53,610,326.25/7,901.51
  6. Step 6: Final answer
    x = 6,784.82

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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.