Home / 4,988.42-7,482.01-1,290.91

Finding the Fourth Proportional to 4,988.42, 7,482.01 and 1,290.91

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Solution

The fourth proportional to 4,988.42, 7,482.01 and 1,290.91 is: 1,936.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.42 : 7,482.01 = 1,290.91 : x
  2. Step 2: Convert to fraction form
    4,988.42/7,482.01 = 1,290.91/x
  3. Step 3: Cross multiply
    4,988.42x = 7,482.01 × 1,290.91
  4. Step 4: Simplify right side
    4,988.42x = 9,658,601.53
  5. Step 5: Solve for x
    x = 9,658,601.53/4,988.42
  6. Step 6: Final answer
    x = 1,936.20

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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.