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Finding the Fourth Proportional to 1,302.83, 1,798.01 and 743.18

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Solution

The fourth proportional to 1,302.83, 1,798.01 and 743.18 is: 1,025.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.83 : 1,798.01 = 743.18 : x
  2. Step 2: Convert to fraction form
    1,302.83/1,798.01 = 743.18/x
  3. Step 3: Cross multiply
    1,302.83x = 1,798.01 × 743.18
  4. Step 4: Simplify right side
    1,302.83x = 1,336,237.94
  5. Step 5: Solve for x
    x = 1,336,237.94/1,302.83
  6. Step 6: Final answer
    x = 1,025.65

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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.