Home / 5,478.37-7,558.62-3,688.37

Finding the Fourth Proportional to 5,478.37, 7,558.62 and 3,688.37

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Solution

The fourth proportional to 5,478.37, 7,558.62 and 3,688.37 is: 5,088.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.37 : 7,558.62 = 3,688.37 : x
  2. Step 2: Convert to fraction form
    5,478.37/7,558.62 = 3,688.37/x
  3. Step 3: Cross multiply
    5,478.37x = 7,558.62 × 3,688.37
  4. Step 4: Simplify right side
    5,478.37x = 27,878,963.97
  5. Step 5: Solve for x
    x = 27,878,963.97/5,478.37
  6. Step 6: Final answer
    x = 5,088.92

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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.