Home / 2,513.80-3,771.84-1,053.28

Finding the Fourth Proportional to 2,513.80, 3,771.84 and 1,053.28

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Solution

The fourth proportional to 2,513.80, 3,771.84 and 1,053.28 is: 1,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,513.80 : 3,771.84 = 1,053.28 : x
  2. Step 2: Convert to fraction form
    2,513.80/3,771.84 = 1,053.28/x
  3. Step 3: Cross multiply
    2,513.80x = 3,771.84 × 1,053.28
  4. Step 4: Simplify right side
    2,513.80x = 3,972,803.64
  5. Step 5: Solve for x
    x = 3,972,803.64/2,513.80
  6. Step 6: Final answer
    x = 1,580.40

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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.