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Finding the Fourth Proportional to 1,533.99, 2,301.95 and 712.35

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Solution

The fourth proportional to 1,533.99, 2,301.95 and 712.35 is: 1,068.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.99 : 2,301.95 = 712.35 : x
  2. Step 2: Convert to fraction form
    1,533.99/2,301.95 = 712.35/x
  3. Step 3: Cross multiply
    1,533.99x = 2,301.95 × 712.35
  4. Step 4: Simplify right side
    1,533.99x = 1,639,790.52
  5. Step 5: Solve for x
    x = 1,639,790.52/1,533.99
  6. Step 6: Final answer
    x = 1,068.97

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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.