Home / 1,296.08-1,944.26-430.48

Finding the Fourth Proportional to 1,296.08, 1,944.26 and 430.48

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Solution

The fourth proportional to 1,296.08, 1,944.26 and 430.48 is: 645.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.08 : 1,944.26 = 430.48 : x
  2. Step 2: Convert to fraction form
    1,296.08/1,944.26 = 430.48/x
  3. Step 3: Cross multiply
    1,296.08x = 1,944.26 × 430.48
  4. Step 4: Simplify right side
    1,296.08x = 836,965.04
  5. Step 5: Solve for x
    x = 836,965.04/1,296.08
  6. Step 6: Final answer
    x = 645.77

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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.