Home / 3,518.88-5,248.56-3,315.84

Finding the Fourth Proportional to 3,518.88, 5,248.56 and 3,315.84

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Solution

The fourth proportional to 3,518.88, 5,248.56 and 3,315.84 is: 4,945.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.88 : 5,248.56 = 3,315.84 : x
  2. Step 2: Convert to fraction form
    3,518.88/5,248.56 = 3,315.84/x
  3. Step 3: Cross multiply
    3,518.88x = 5,248.56 × 3,315.84
  4. Step 4: Simplify right side
    3,518.88x = 17,403,385.19
  5. Step 5: Solve for x
    x = 17,403,385.19/3,518.88
  6. Step 6: Final answer
    x = 4,945.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.