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Finding the Fourth Proportional to 2,048.79, 3,070.76 and 1,124.79

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Solution

The fourth proportional to 2,048.79, 3,070.76 and 1,124.79 is: 1,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.79 : 3,070.76 = 1,124.79 : x
  2. Step 2: Convert to fraction form
    2,048.79/3,070.76 = 1,124.79/x
  3. Step 3: Cross multiply
    2,048.79x = 3,070.76 × 1,124.79
  4. Step 4: Simplify right side
    2,048.79x = 3,453,960.14
  5. Step 5: Solve for x
    x = 3,453,960.14/2,048.79
  6. Step 6: Final answer
    x = 1,685.85

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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.