Home / 3,718.50-5,579.10-1,410

Finding the Fourth Proportional to 3,718.50, 5,579.10 and 1,410

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Solution

The fourth proportional to 3,718.50, 5,579.10 and 1,410 is: 2,115.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.50 : 5,579.10 = 1,410 : x
  2. Step 2: Convert to fraction form
    3,718.50/5,579.10 = 1,410/x
  3. Step 3: Cross multiply
    3,718.50x = 5,579.10 × 1,410
  4. Step 4: Simplify right side
    3,718.50x = 7,866,531.00
  5. Step 5: Solve for x
    x = 7,866,531.00/3,718.50
  6. Step 6: Final answer
    x = 2,115.51

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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.