Home / 3,518.71-5,280.42-1,876.39

Finding the Fourth Proportional to 3,518.71, 5,280.42 and 1,876.39

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Solution

The fourth proportional to 3,518.71, 5,280.42 and 1,876.39 is: 2,815.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.71 : 5,280.42 = 1,876.39 : x
  2. Step 2: Convert to fraction form
    3,518.71/5,280.42 = 1,876.39/x
  3. Step 3: Cross multiply
    3,518.71x = 5,280.42 × 1,876.39
  4. Step 4: Simplify right side
    3,518.71x = 9,908,127.28
  5. Step 5: Solve for x
    x = 9,908,127.28/3,518.71
  6. Step 6: Final answer
    x = 2,815.84

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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.