Home / 5,889.84-8,128.48-4,005.60

Finding the Fourth Proportional to 5,889.84, 8,128.48 and 4,005.60

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Solution

The fourth proportional to 5,889.84, 8,128.48 and 4,005.60 is: 5,528.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,889.84 : 8,128.48 = 4,005.60 : x
  2. Step 2: Convert to fraction form
    5,889.84/8,128.48 = 4,005.60/x
  3. Step 3: Cross multiply
    5,889.84x = 8,128.48 × 4,005.60
  4. Step 4: Simplify right side
    5,889.84x = 32,559,419.46
  5. Step 5: Solve for x
    x = 32,559,419.46/5,889.84
  6. Step 6: Final answer
    x = 5,528.07

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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.