Home / 3,440.45-5,158.59-1,878.29

Finding the Fourth Proportional to 3,440.45, 5,158.59 and 1,878.29

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Solution

The fourth proportional to 3,440.45, 5,158.59 and 1,878.29 is: 2,816.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.45 : 5,158.59 = 1,878.29 : x
  2. Step 2: Convert to fraction form
    3,440.45/5,158.59 = 1,878.29/x
  3. Step 3: Cross multiply
    3,440.45x = 5,158.59 × 1,878.29
  4. Step 4: Simplify right side
    3,440.45x = 9,689,302.22
  5. Step 5: Solve for x
    x = 9,689,302.22/3,440.45
  6. Step 6: Final answer
    x = 2,816.29

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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.