Home / 3,585.12-5,374.44-1,275

Finding the Fourth Proportional to 3,585.12, 5,374.44 and 1,275

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Solution

The fourth proportional to 3,585.12, 5,374.44 and 1,275 is: 1,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.12 : 5,374.44 = 1,275 : x
  2. Step 2: Convert to fraction form
    3,585.12/5,374.44 = 1,275/x
  3. Step 3: Cross multiply
    3,585.12x = 5,374.44 × 1,275
  4. Step 4: Simplify right side
    3,585.12x = 6,852,411.00
  5. Step 5: Solve for x
    x = 6,852,411.00/3,585.12
  6. Step 6: Final answer
    x = 1,911.35

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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.