Home / 4,319.68-6,478.56-1,820.48

Finding the Fourth Proportional to 4,319.68, 6,478.56 and 1,820.48

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Solution

The fourth proportional to 4,319.68, 6,478.56 and 1,820.48 is: 2,730.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.68 : 6,478.56 = 1,820.48 : x
  2. Step 2: Convert to fraction form
    4,319.68/6,478.56 = 1,820.48/x
  3. Step 3: Cross multiply
    4,319.68x = 6,478.56 × 1,820.48
  4. Step 4: Simplify right side
    4,319.68x = 11,794,088.91
  5. Step 5: Solve for x
    x = 11,794,088.91/4,319.68
  6. Step 6: Final answer
    x = 2,730.32

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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.