Home / 5,905.12-8,150.40-4,492.72

Finding the Fourth Proportional to 5,905.12, 8,150.40 and 4,492.72

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Solution

The fourth proportional to 5,905.12, 8,150.40 and 4,492.72 is: 6,200.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.12 : 8,150.40 = 4,492.72 : x
  2. Step 2: Convert to fraction form
    5,905.12/8,150.40 = 4,492.72/x
  3. Step 3: Cross multiply
    5,905.12x = 8,150.40 × 4,492.72
  4. Step 4: Simplify right side
    5,905.12x = 36,617,465.09
  5. Step 5: Solve for x
    x = 36,617,465.09/5,905.12
  6. Step 6: Final answer
    x = 6,200.97

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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.