Home / 3,573.18-4,929.85-2,315.20

Finding the Fourth Proportional to 3,573.18, 4,929.85 and 2,315.20

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Solution

The fourth proportional to 3,573.18, 4,929.85 and 2,315.20 is: 3,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.18 : 4,929.85 = 2,315.20 : x
  2. Step 2: Convert to fraction form
    3,573.18/4,929.85 = 2,315.20/x
  3. Step 3: Cross multiply
    3,573.18x = 4,929.85 × 2,315.20
  4. Step 4: Simplify right side
    3,573.18x = 11,413,575.51
  5. Step 5: Solve for x
    x = 11,413,575.51/3,573.18
  6. Step 6: Final answer
    x = 3,194.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.