Home / 1,023.28-1,411.35-673.36

Finding the Fourth Proportional to 1,023.28, 1,411.35 and 673.36

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Solution

The fourth proportional to 1,023.28, 1,411.35 and 673.36 is: 928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023.28 : 1,411.35 = 673.36 : x
  2. Step 2: Convert to fraction form
    1,023.28/1,411.35 = 673.36/x
  3. Step 3: Cross multiply
    1,023.28x = 1,411.35 × 673.36
  4. Step 4: Simplify right side
    1,023.28x = 950,346.64
  5. Step 5: Solve for x
    x = 950,346.64/1,023.28
  6. Step 6: Final answer
    x = 928.73

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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.