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Finding the Fourth Proportional to 953.56, 1,317.10 and 735.16

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Solution

The fourth proportional to 953.56, 1,317.10 and 735.16 is: 1,015.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.56 : 1,317.10 = 735.16 : x
  2. Step 2: Convert to fraction form
    953.56/1,317.10 = 735.16/x
  3. Step 3: Cross multiply
    953.56x = 1,317.10 × 735.16
  4. Step 4: Simplify right side
    953.56x = 968,279.24
  5. Step 5: Solve for x
    x = 968,279.24/953.56
  6. Step 6: Final answer
    x = 1,015.44

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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.