Home / 4,919.76-7,378.62-1,456.20

Finding the Fourth Proportional to 4,919.76, 7,378.62 and 1,456.20

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Solution

The fourth proportional to 4,919.76, 7,378.62 and 1,456.20 is: 2,184.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.76 : 7,378.62 = 1,456.20 : x
  2. Step 2: Convert to fraction form
    4,919.76/7,378.62 = 1,456.20/x
  3. Step 3: Cross multiply
    4,919.76x = 7,378.62 × 1,456.20
  4. Step 4: Simplify right side
    4,919.76x = 10,744,746.44
  5. Step 5: Solve for x
    x = 10,744,746.44/4,919.76
  6. Step 6: Final answer
    x = 2,184.00

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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.