Home / 7,618.42-11,427.88-2,620.74

Finding the Fourth Proportional to 7,618.42, 11,427.88 and 2,620.74

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Solution

The fourth proportional to 7,618.42, 11,427.88 and 2,620.74 is: 3,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.42 : 11,427.88 = 2,620.74 : x
  2. Step 2: Convert to fraction form
    7,618.42/11,427.88 = 2,620.74/x
  3. Step 3: Cross multiply
    7,618.42x = 11,427.88 × 2,620.74
  4. Step 4: Simplify right side
    7,618.42x = 29,949,502.23
  5. Step 5: Solve for x
    x = 29,949,502.23/7,618.42
  6. Step 6: Final answer
    x = 3,931.20

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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.