Home / 1,533.44-2,116.12-1,407.92

Finding the Fourth Proportional to 1,533.44, 2,116.12 and 1,407.92

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Solution

The fourth proportional to 1,533.44, 2,116.12 and 1,407.92 is: 1,942.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.44 : 2,116.12 = 1,407.92 : x
  2. Step 2: Convert to fraction form
    1,533.44/2,116.12 = 1,407.92/x
  3. Step 3: Cross multiply
    1,533.44x = 2,116.12 × 1,407.92
  4. Step 4: Simplify right side
    1,533.44x = 2,979,313.57
  5. Step 5: Solve for x
    x = 2,979,313.57/1,533.44
  6. Step 6: Final answer
    x = 1,942.89

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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.