Home / 4,120.16-6,178.96-1,487.32

Finding the Fourth Proportional to 4,120.16, 6,178.96 and 1,487.32

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Solution

The fourth proportional to 4,120.16, 6,178.96 and 1,487.32 is: 2,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.16 : 6,178.96 = 1,487.32 : x
  2. Step 2: Convert to fraction form
    4,120.16/6,178.96 = 1,487.32/x
  3. Step 3: Cross multiply
    4,120.16x = 6,178.96 × 1,487.32
  4. Step 4: Simplify right side
    4,120.16x = 9,190,090.79
  5. Step 5: Solve for x
    x = 9,190,090.79/4,120.16
  6. Step 6: Final answer
    x = 2,230.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.