Home / 4,278.74-6,416.44-1,316.30

Finding the Fourth Proportional to 4,278.74, 6,416.44 and 1,316.30

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Solution

The fourth proportional to 4,278.74, 6,416.44 and 1,316.30 is: 1,973.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.74 : 6,416.44 = 1,316.30 : x
  2. Step 2: Convert to fraction form
    4,278.74/6,416.44 = 1,316.30/x
  3. Step 3: Cross multiply
    4,278.74x = 6,416.44 × 1,316.30
  4. Step 4: Simplify right side
    4,278.74x = 8,445,959.97
  5. Step 5: Solve for x
    x = 8,445,959.97/4,278.74
  6. Step 6: Final answer
    x = 1,973.94

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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.