Home / 2,108.52-2,909.64-1,177.08

Finding the Fourth Proportional to 2,108.52, 2,909.64 and 1,177.08

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Solution

The fourth proportional to 2,108.52, 2,909.64 and 1,177.08 is: 1,624.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.52 : 2,909.64 = 1,177.08 : x
  2. Step 2: Convert to fraction form
    2,108.52/2,909.64 = 1,177.08/x
  3. Step 3: Cross multiply
    2,108.52x = 2,909.64 × 1,177.08
  4. Step 4: Simplify right side
    2,108.52x = 3,424,879.05
  5. Step 5: Solve for x
    x = 3,424,879.05/2,108.52
  6. Step 6: Final answer
    x = 1,624.30

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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.