Home / 4,988.80-7,482.59-1,290.73

Finding the Fourth Proportional to 4,988.80, 7,482.59 and 1,290.73

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Solution

The fourth proportional to 4,988.80, 7,482.59 and 1,290.73 is: 1,935.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.80 : 7,482.59 = 1,290.73 : x
  2. Step 2: Convert to fraction form
    4,988.80/7,482.59 = 1,290.73/x
  3. Step 3: Cross multiply
    4,988.80x = 7,482.59 × 1,290.73
  4. Step 4: Simplify right side
    4,988.80x = 9,657,969.20
  5. Step 5: Solve for x
    x = 9,657,969.20/4,988.80
  6. Step 6: Final answer
    x = 1,935.93

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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.