Home / 2,612.64-3,918.24-1,876.08

Finding the Fourth Proportional to 2,612.64, 3,918.24 and 1,876.08

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Solution

The fourth proportional to 2,612.64, 3,918.24 and 1,876.08 is: 2,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.64 : 3,918.24 = 1,876.08 : x
  2. Step 2: Convert to fraction form
    2,612.64/3,918.24 = 1,876.08/x
  3. Step 3: Cross multiply
    2,612.64x = 3,918.24 × 1,876.08
  4. Step 4: Simplify right side
    2,612.64x = 7,350,931.70
  5. Step 5: Solve for x
    x = 7,350,931.70/2,612.64
  6. Step 6: Final answer
    x = 2,813.60

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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.