Home / 1,451.28-2,174.45-957.39

Finding the Fourth Proportional to 1,451.28, 2,174.45 and 957.39

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Solution

The fourth proportional to 1,451.28, 2,174.45 and 957.39 is: 1,434.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.28 : 2,174.45 = 957.39 : x
  2. Step 2: Convert to fraction form
    1,451.28/2,174.45 = 957.39/x
  3. Step 3: Cross multiply
    1,451.28x = 2,174.45 × 957.39
  4. Step 4: Simplify right side
    1,451.28x = 2,081,783.74
  5. Step 5: Solve for x
    x = 2,081,783.74/1,451.28
  6. Step 6: Final answer
    x = 1,434.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.