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Finding the Fourth Proportional to 1,557.73, 2,333.75 and 906.49

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Solution

The fourth proportional to 1,557.73, 2,333.75 and 906.49 is: 1,358.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.73 : 2,333.75 = 906.49 : x
  2. Step 2: Convert to fraction form
    1,557.73/2,333.75 = 906.49/x
  3. Step 3: Cross multiply
    1,557.73x = 2,333.75 × 906.49
  4. Step 4: Simplify right side
    1,557.73x = 2,115,509.37
  5. Step 5: Solve for x
    x = 2,115,509.37/1,557.73
  6. Step 6: Final answer
    x = 1,358.08

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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.