Home / 3,315.59-4,973.40-1,578.95

Finding the Fourth Proportional to 3,315.59, 4,973.40 and 1,578.95

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Solution

The fourth proportional to 3,315.59, 4,973.40 and 1,578.95 is: 2,368.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.59 : 4,973.40 = 1,578.95 : x
  2. Step 2: Convert to fraction form
    3,315.59/4,973.40 = 1,578.95/x
  3. Step 3: Cross multiply
    3,315.59x = 4,973.40 × 1,578.95
  4. Step 4: Simplify right side
    3,315.59x = 7,852,725.06
  5. Step 5: Solve for x
    x = 7,852,725.06/3,315.59
  6. Step 6: Final answer
    x = 2,368.43

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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.