Home / 2,048.96-2,824.26-1,385.57

Finding the Fourth Proportional to 2,048.96, 2,824.26 and 1,385.57

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Solution

The fourth proportional to 2,048.96, 2,824.26 and 1,385.57 is: 1,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.96 : 2,824.26 = 1,385.57 : x
  2. Step 2: Convert to fraction form
    2,048.96/2,824.26 = 1,385.57/x
  3. Step 3: Cross multiply
    2,048.96x = 2,824.26 × 1,385.57
  4. Step 4: Simplify right side
    2,048.96x = 3,913,209.93
  5. Step 5: Solve for x
    x = 3,913,209.93/2,048.96
  6. Step 6: Final answer
    x = 1,909.85

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1.5x scale

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.