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Finding the Fourth Proportional to 3,015.53, 4,522.40 and 907.07

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Solution

The fourth proportional to 3,015.53, 4,522.40 and 907.07 is: 1,360.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.53 : 4,522.40 = 907.07 : x
  2. Step 2: Convert to fraction form
    3,015.53/4,522.40 = 907.07/x
  3. Step 3: Cross multiply
    3,015.53x = 4,522.40 × 907.07
  4. Step 4: Simplify right side
    3,015.53x = 4,102,113.02
  5. Step 5: Solve for x
    x = 4,102,113.02/3,015.53
  6. Step 6: Final answer
    x = 1,360.33

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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.