Home / 5,318.02-7,340.52-3,638.78

Finding the Fourth Proportional to 5,318.02, 7,340.52 and 3,638.78

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Solution

The fourth proportional to 5,318.02, 7,340.52 and 3,638.78 is: 5,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.02 : 7,340.52 = 3,638.78 : x
  2. Step 2: Convert to fraction form
    5,318.02/7,340.52 = 3,638.78/x
  3. Step 3: Cross multiply
    5,318.02x = 7,340.52 × 3,638.78
  4. Step 4: Simplify right side
    5,318.02x = 26,710,537.37
  5. Step 5: Solve for x
    x = 26,710,537.37/5,318.02
  6. Step 6: Final answer
    x = 5,022.65

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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.