Home / 4,219.74-6,328.38-1,298.28

Finding the Fourth Proportional to 4,219.74, 6,328.38 and 1,298.28

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Solution

The fourth proportional to 4,219.74, 6,328.38 and 1,298.28 is: 1,947.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.74 : 6,328.38 = 1,298.28 : x
  2. Step 2: Convert to fraction form
    4,219.74/6,328.38 = 1,298.28/x
  3. Step 3: Cross multiply
    4,219.74x = 6,328.38 × 1,298.28
  4. Step 4: Simplify right side
    4,219.74x = 8,216,009.19
  5. Step 5: Solve for x
    x = 8,216,009.19/4,219.74
  6. Step 6: Final answer
    x = 1,947.04

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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.