Home / 5,315.22-7,335.27-2,957.49

Finding the Fourth Proportional to 5,315.22, 7,335.27 and 2,957.49

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Solution

The fourth proportional to 5,315.22, 7,335.27 and 2,957.49 is: 4,081.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.22 : 7,335.27 = 2,957.49 : x
  2. Step 2: Convert to fraction form
    5,315.22/7,335.27 = 2,957.49/x
  3. Step 3: Cross multiply
    5,315.22x = 7,335.27 × 2,957.49
  4. Step 4: Simplify right side
    5,315.22x = 21,693,987.67
  5. Step 5: Solve for x
    x = 21,693,987.67/5,315.22
  6. Step 6: Final answer
    x = 4,081.48

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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.