Home / 4,281.76-6,420.96-1,507.84

Finding the Fourth Proportional to 4,281.76, 6,420.96 and 1,507.84

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Solution

The fourth proportional to 4,281.76, 6,420.96 and 1,507.84 is: 2,261.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.76 : 6,420.96 = 1,507.84 : x
  2. Step 2: Convert to fraction form
    4,281.76/6,420.96 = 1,507.84/x
  3. Step 3: Cross multiply
    4,281.76x = 6,420.96 × 1,507.84
  4. Step 4: Simplify right side
    4,281.76x = 9,681,780.33
  5. Step 5: Solve for x
    x = 9,681,780.33/4,281.76
  6. Step 6: Final answer
    x = 2,261.17

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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.