Home / 7,314.17-10,977.40-3,157.32

Finding the Fourth Proportional to 7,314.17, 10,977.40 and 3,157.32

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Solution

The fourth proportional to 7,314.17, 10,977.40 and 3,157.32 is: 4,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,314.17 : 10,977.40 = 3,157.32 : x
  2. Step 2: Convert to fraction form
    7,314.17/10,977.40 = 3,157.32/x
  3. Step 3: Cross multiply
    7,314.17x = 10,977.40 × 3,157.32
  4. Step 4: Simplify right side
    7,314.17x = 34,659,129.23
  5. Step 5: Solve for x
    x = 34,659,129.23/7,314.17
  6. Step 6: Final answer
    x = 4,738.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.