Home / 3,719.69-5,579.36-1,254.50

Finding the Fourth Proportional to 3,719.69, 5,579.36 and 1,254.50

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Solution

The fourth proportional to 3,719.69, 5,579.36 and 1,254.50 is: 1,881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.69 : 5,579.36 = 1,254.50 : x
  2. Step 2: Convert to fraction form
    3,719.69/5,579.36 = 1,254.50/x
  3. Step 3: Cross multiply
    3,719.69x = 5,579.36 × 1,254.50
  4. Step 4: Simplify right side
    3,719.69x = 6,999,272.95
  5. Step 5: Solve for x
    x = 6,999,272.95/3,719.69
  6. Step 6: Final answer
    x = 1,881.68

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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.