Home / 1,446.71-2,155.12-1,357.07

Finding the Fourth Proportional to 1,446.71, 2,155.12 and 1,357.07

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Solution

The fourth proportional to 1,446.71, 2,155.12 and 1,357.07 is: 2,021.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446.71 : 2,155.12 = 1,357.07 : x
  2. Step 2: Convert to fraction form
    1,446.71/2,155.12 = 1,357.07/x
  3. Step 3: Cross multiply
    1,446.71x = 2,155.12 × 1,357.07
  4. Step 4: Simplify right side
    1,446.71x = 2,924,648.70
  5. Step 5: Solve for x
    x = 2,924,648.70/1,446.71
  6. Step 6: Final answer
    x = 2,021.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.