Home / 4,270.16-6,405.59-1,308.51

Finding the Fourth Proportional to 4,270.16, 6,405.59 and 1,308.51

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Solution

The fourth proportional to 4,270.16, 6,405.59 and 1,308.51 is: 1,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.16 : 6,405.59 = 1,308.51 : x
  2. Step 2: Convert to fraction form
    4,270.16/6,405.59 = 1,308.51/x
  3. Step 3: Cross multiply
    4,270.16x = 6,405.59 × 1,308.51
  4. Step 4: Simplify right side
    4,270.16x = 8,381,781.84
  5. Step 5: Solve for x
    x = 8,381,781.84/4,270.16
  6. Step 6: Final answer
    x = 1,962.87

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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.