Home / 4,320.63-6,479.58-1,398.25

Finding the Fourth Proportional to 4,320.63, 6,479.58 and 1,398.25

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Solution

The fourth proportional to 4,320.63, 6,479.58 and 1,398.25 is: 2,096.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.63 : 6,479.58 = 1,398.25 : x
  2. Step 2: Convert to fraction form
    4,320.63/6,479.58 = 1,398.25/x
  3. Step 3: Cross multiply
    4,320.63x = 6,479.58 × 1,398.25
  4. Step 4: Simplify right side
    4,320.63x = 9,060,072.74
  5. Step 5: Solve for x
    x = 9,060,072.74/4,320.63
  6. Step 6: Final answer
    x = 2,096.93

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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.