Home / 5,274.84-7,907.59-1,988.08

Finding the Fourth Proportional to 5,274.84, 7,907.59 and 1,988.08

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Solution

The fourth proportional to 5,274.84, 7,907.59 and 1,988.08 is: 2,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.84 : 7,907.59 = 1,988.08 : x
  2. Step 2: Convert to fraction form
    5,274.84/7,907.59 = 1,988.08/x
  3. Step 3: Cross multiply
    5,274.84x = 7,907.59 × 1,988.08
  4. Step 4: Simplify right side
    5,274.84x = 15,720,921.53
  5. Step 5: Solve for x
    x = 15,720,921.53/5,274.84
  6. Step 6: Final answer
    x = 2,980.36

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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.