Home / 4,988.34-7,472.94-2,790.42

Finding the Fourth Proportional to 4,988.34, 7,472.94 and 2,790.42

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Solution

The fourth proportional to 4,988.34, 7,472.94 and 2,790.42 is: 4,180.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.34 : 7,472.94 = 2,790.42 : x
  2. Step 2: Convert to fraction form
    4,988.34/7,472.94 = 2,790.42/x
  3. Step 3: Cross multiply
    4,988.34x = 7,472.94 × 2,790.42
  4. Step 4: Simplify right side
    4,988.34x = 20,852,641.23
  5. Step 5: Solve for x
    x = 20,852,641.23/4,988.34
  6. Step 6: Final answer
    x = 4,180.28

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1.5x scale

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.