Home / 4,320.77-6,481.76-1,398.49

Finding the Fourth Proportional to 4,320.77, 6,481.76 and 1,398.49

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Solution

The fourth proportional to 4,320.77, 6,481.76 and 1,398.49 is: 2,097.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.77 : 6,481.76 = 1,398.49 : x
  2. Step 2: Convert to fraction form
    4,320.77/6,481.76 = 1,398.49/x
  3. Step 3: Cross multiply
    4,320.77x = 6,481.76 × 1,398.49
  4. Step 4: Simplify right side
    4,320.77x = 9,064,653.35
  5. Step 5: Solve for x
    x = 9,064,653.35/4,320.77
  6. Step 6: Final answer
    x = 2,097.93

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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.