Home / 3,518.93-5,278.30-1,298.30

Finding the Fourth Proportional to 3,518.93, 5,278.30 and 1,298.30

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Solution

The fourth proportional to 3,518.93, 5,278.30 and 1,298.30 is: 1,947.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.93 : 5,278.30 = 1,298.30 : x
  2. Step 2: Convert to fraction form
    3,518.93/5,278.30 = 1,298.30/x
  3. Step 3: Cross multiply
    3,518.93x = 5,278.30 × 1,298.30
  4. Step 4: Simplify right side
    3,518.93x = 6,852,787.25
  5. Step 5: Solve for x
    x = 6,852,787.25/3,518.93
  6. Step 6: Final answer
    x = 1,947.41

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Similar ratio
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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.