Home / 2,988.78-4,124.53-1,662.50

Finding the Fourth Proportional to 2,988.78, 4,124.53 and 1,662.50

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Solution

The fourth proportional to 2,988.78, 4,124.53 and 1,662.50 is: 2,294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.78 : 4,124.53 = 1,662.50 : x
  2. Step 2: Convert to fraction form
    2,988.78/4,124.53 = 1,662.50/x
  3. Step 3: Cross multiply
    2,988.78x = 4,124.53 × 1,662.50
  4. Step 4: Simplify right side
    2,988.78x = 6,857,031.13
  5. Step 5: Solve for x
    x = 6,857,031.13/2,988.78
  6. Step 6: Final answer
    x = 2,294.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.