Home / 4,119.20-5,678.64-2,546.40

Finding the Fourth Proportional to 4,119.20, 5,678.64 and 2,546.40

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Solution

The fourth proportional to 4,119.20, 5,678.64 and 2,546.40 is: 3,510.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.20 : 5,678.64 = 2,546.40 : x
  2. Step 2: Convert to fraction form
    4,119.20/5,678.64 = 2,546.40/x
  3. Step 3: Cross multiply
    4,119.20x = 5,678.64 × 2,546.40
  4. Step 4: Simplify right side
    4,119.20x = 14,460,088.90
  5. Step 5: Solve for x
    x = 14,460,088.90/4,119.20
  6. Step 6: Final answer
    x = 3,510.41

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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.