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Finding the Fourth Proportional to 907.05, 1,250.70 and 744.88

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Solution

The fourth proportional to 907.05, 1,250.70 and 744.88 is: 1,027.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.05 : 1,250.70 = 744.88 : x
  2. Step 2: Convert to fraction form
    907.05/1,250.70 = 744.88/x
  3. Step 3: Cross multiply
    907.05x = 1,250.70 × 744.88
  4. Step 4: Simplify right side
    907.05x = 931,621.42
  5. Step 5: Solve for x
    x = 931,621.42/907.05
  6. Step 6: Final answer
    x = 1,027.09

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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.