Home / 2,197.52-3,032.50-1,312.80

Finding the Fourth Proportional to 2,197.52, 3,032.50 and 1,312.80

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Solution

The fourth proportional to 2,197.52, 3,032.50 and 1,312.80 is: 1,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.52 : 3,032.50 = 1,312.80 : x
  2. Step 2: Convert to fraction form
    2,197.52/3,032.50 = 1,312.80/x
  3. Step 3: Cross multiply
    2,197.52x = 3,032.50 × 1,312.80
  4. Step 4: Simplify right side
    2,197.52x = 3,981,066
  5. Step 5: Solve for x
    x = 3,981,066/2,197.52
  6. Step 6: Final answer
    x = 1,811.62

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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.