Home / 1,459.60-2,186.16-1,278.16

Finding the Fourth Proportional to 1,459.60, 2,186.16 and 1,278.16

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Solution

The fourth proportional to 1,459.60, 2,186.16 and 1,278.16 is: 1,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.60 : 2,186.16 = 1,278.16 : x
  2. Step 2: Convert to fraction form
    1,459.60/2,186.16 = 1,278.16/x
  3. Step 3: Cross multiply
    1,459.60x = 2,186.16 × 1,278.16
  4. Step 4: Simplify right side
    1,459.60x = 2,794,262.27
  5. Step 5: Solve for x
    x = 2,794,262.27/1,459.60
  6. Step 6: Final answer
    x = 1,914.40

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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.