Home / 4,988.65-7,482.97-1,291.25

Finding the Fourth Proportional to 4,988.65, 7,482.97 and 1,291.25

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Solution

The fourth proportional to 4,988.65, 7,482.97 and 1,291.25 is: 1,936.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.65 : 7,482.97 = 1,291.25 : x
  2. Step 2: Convert to fraction form
    4,988.65/7,482.97 = 1,291.25/x
  3. Step 3: Cross multiply
    4,988.65x = 7,482.97 × 1,291.25
  4. Step 4: Simplify right side
    4,988.65x = 9,662,385.01
  5. Step 5: Solve for x
    x = 9,662,385.01/4,988.65
  6. Step 6: Final answer
    x = 1,936.87

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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.