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Finding the Fourth Proportional to 1,557.36, 2,334.72 and 735.18

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Solution

The fourth proportional to 1,557.36, 2,334.72 and 735.18 is: 1,102.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.36 : 2,334.72 = 735.18 : x
  2. Step 2: Convert to fraction form
    1,557.36/2,334.72 = 735.18/x
  3. Step 3: Cross multiply
    1,557.36x = 2,334.72 × 735.18
  4. Step 4: Simplify right side
    1,557.36x = 1,716,439.45
  5. Step 5: Solve for x
    x = 1,716,439.45/1,557.36
  6. Step 6: Final answer
    x = 1,102.15

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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.