Home / 4,990.23-7,482.74-2,215.71

Finding the Fourth Proportional to 4,990.23, 7,482.74 and 2,215.71

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Solution

The fourth proportional to 4,990.23, 7,482.74 and 2,215.71 is: 3,322.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.23 : 7,482.74 = 2,215.71 : x
  2. Step 2: Convert to fraction form
    4,990.23/7,482.74 = 2,215.71/x
  3. Step 3: Cross multiply
    4,990.23x = 7,482.74 × 2,215.71
  4. Step 4: Simplify right side
    4,990.23x = 16,579,570.77
  5. Step 5: Solve for x
    x = 16,579,570.77/4,990.23
  6. Step 6: Final answer
    x = 3,322.41

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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.