Home / 5,315.22-7,334.40-2,956.80

Finding the Fourth Proportional to 5,315.22, 7,334.40 and 2,956.80

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Solution

The fourth proportional to 5,315.22, 7,334.40 and 2,956.80 is: 4,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.22 : 7,334.40 = 2,956.80 : x
  2. Step 2: Convert to fraction form
    5,315.22/7,334.40 = 2,956.80/x
  3. Step 3: Cross multiply
    5,315.22x = 7,334.40 × 2,956.80
  4. Step 4: Simplify right side
    5,315.22x = 21,686,353.92
  5. Step 5: Solve for x
    x = 21,686,353.92/5,315.22
  6. Step 6: Final answer
    x = 4,080.05

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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.