Home / 2,197.60-3,038.52-1,920.94

Finding the Fourth Proportional to 2,197.60, 3,038.52 and 1,920.94

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Solution

The fourth proportional to 2,197.60, 3,038.52 and 1,920.94 is: 2,655.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.60 : 3,038.52 = 1,920.94 : x
  2. Step 2: Convert to fraction form
    2,197.60/3,038.52 = 1,920.94/x
  3. Step 3: Cross multiply
    2,197.60x = 3,038.52 × 1,920.94
  4. Step 4: Simplify right side
    2,197.60x = 5,836,814.61
  5. Step 5: Solve for x
    x = 5,836,814.61/2,197.60
  6. Step 6: Final answer
    x = 2,655.99

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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.