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Finding the Fourth Proportional to 1,207.07, 1,665.51 and 735.23

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Solution

The fourth proportional to 1,207.07, 1,665.51 and 735.23 is: 1,014.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.07 : 1,665.51 = 735.23 : x
  2. Step 2: Convert to fraction form
    1,207.07/1,665.51 = 735.23/x
  3. Step 3: Cross multiply
    1,207.07x = 1,665.51 × 735.23
  4. Step 4: Simplify right side
    1,207.07x = 1,224,532.92
  5. Step 5: Solve for x
    x = 1,224,532.92/1,207.07
  6. Step 6: Final answer
    x = 1,014.47

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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.