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Finding the Fourth Proportional to 933.95, 1,288.91 and 541.01

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Solution

The fourth proportional to 933.95, 1,288.91 and 541.01 is: 746.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.95 : 1,288.91 = 541.01 : x
  2. Step 2: Convert to fraction form
    933.95/1,288.91 = 541.01/x
  3. Step 3: Cross multiply
    933.95x = 1,288.91 × 541.01
  4. Step 4: Simplify right side
    933.95x = 697,317.77
  5. Step 5: Solve for x
    x = 697,317.77/933.95
  6. Step 6: Final answer
    x = 746.63

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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.