Home / 5,315.09-7,335.22-3,077.75

Finding the Fourth Proportional to 5,315.09, 7,335.22 and 3,077.75

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Solution

The fourth proportional to 5,315.09, 7,335.22 and 3,077.75 is: 4,247.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.09 : 7,335.22 = 3,077.75 : x
  2. Step 2: Convert to fraction form
    5,315.09/7,335.22 = 3,077.75/x
  3. Step 3: Cross multiply
    5,315.09x = 7,335.22 × 3,077.75
  4. Step 4: Simplify right side
    5,315.09x = 22,575,952.84
  5. Step 5: Solve for x
    x = 22,575,952.84/5,315.09
  6. Step 6: Final answer
    x = 4,247.52

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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.