Home / 1,988.28-2,962.44-1,876.50

Finding the Fourth Proportional to 1,988.28, 2,962.44 and 1,876.50

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Solution

The fourth proportional to 1,988.28, 2,962.44 and 1,876.50 is: 2,795.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.28 : 2,962.44 = 1,876.50 : x
  2. Step 2: Convert to fraction form
    1,988.28/2,962.44 = 1,876.50/x
  3. Step 3: Cross multiply
    1,988.28x = 2,962.44 × 1,876.50
  4. Step 4: Simplify right side
    1,988.28x = 5,559,018.66
  5. Step 5: Solve for x
    x = 5,559,018.66/1,988.28
  6. Step 6: Final answer
    x = 2,795.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.