Home / 3,215-4,823.02-1,135.56

Finding the Fourth Proportional to 3,215, 4,823.02 and 1,135.56

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Solution

The fourth proportional to 3,215, 4,823.02 and 1,135.56 is: 1,703.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215 : 4,823.02 = 1,135.56 : x
  2. Step 2: Convert to fraction form
    3,215/4,823.02 = 1,135.56/x
  3. Step 3: Cross multiply
    3,215x = 4,823.02 × 1,135.56
  4. Step 4: Simplify right side
    3,215x = 5,476,828.59
  5. Step 5: Solve for x
    x = 5,476,828.59/3,215
  6. Step 6: Final answer
    x = 1,703.52

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1.5x scale

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.