Home / 5,076.81-7,005.06-2,838.60

Finding the Fourth Proportional to 5,076.81, 7,005.06 and 2,838.60

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Solution

The fourth proportional to 5,076.81, 7,005.06 and 2,838.60 is: 3,916.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.81 : 7,005.06 = 2,838.60 : x
  2. Step 2: Convert to fraction form
    5,076.81/7,005.06 = 2,838.60/x
  3. Step 3: Cross multiply
    5,076.81x = 7,005.06 × 2,838.60
  4. Step 4: Simplify right side
    5,076.81x = 19,884,563.32
  5. Step 5: Solve for x
    x = 19,884,563.32/5,076.81
  6. Step 6: Final answer
    x = 3,916.74

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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.