Home / 2,108.48-2,909.76-1,177.04

Finding the Fourth Proportional to 2,108.48, 2,909.76 and 1,177.04

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Solution

The fourth proportional to 2,108.48, 2,909.76 and 1,177.04 is: 1,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.48 : 2,909.76 = 1,177.04 : x
  2. Step 2: Convert to fraction form
    2,108.48/2,909.76 = 1,177.04/x
  3. Step 3: Cross multiply
    2,108.48x = 2,909.76 × 1,177.04
  4. Step 4: Simplify right side
    2,108.48x = 3,424,903.91
  5. Step 5: Solve for x
    x = 3,424,903.91/2,108.48
  6. Step 6: Final answer
    x = 1,624.35

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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.