Home / 2,515.60-3,772.18-1,054.36

Finding the Fourth Proportional to 2,515.60, 3,772.18 and 1,054.36

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Solution

The fourth proportional to 2,515.60, 3,772.18 and 1,054.36 is: 1,581.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.60 : 3,772.18 = 1,054.36 : x
  2. Step 2: Convert to fraction form
    2,515.60/3,772.18 = 1,054.36/x
  3. Step 3: Cross multiply
    2,515.60x = 3,772.18 × 1,054.36
  4. Step 4: Simplify right side
    2,515.60x = 3,977,228.91
  5. Step 5: Solve for x
    x = 3,977,228.91/2,515.60
  6. Step 6: Final answer
    x = 1,581.03

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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.