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Finding the Fourth Proportional to 3,726.40, 5,589.58 and 953.07

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Solution

The fourth proportional to 3,726.40, 5,589.58 and 953.07 is: 1,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.40 : 5,589.58 = 953.07 : x
  2. Step 2: Convert to fraction form
    3,726.40/5,589.58 = 953.07/x
  3. Step 3: Cross multiply
    3,726.40x = 5,589.58 × 953.07
  4. Step 4: Simplify right side
    3,726.40x = 5,327,261.01
  5. Step 5: Solve for x
    x = 5,327,261.01/3,726.40
  6. Step 6: Final answer
    x = 1,429.60

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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.