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Finding the Fourth Proportional to 1,707.04, 2,560.77 and 611.52

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Solution

The fourth proportional to 1,707.04, 2,560.77 and 611.52 is: 917.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.04 : 2,560.77 = 611.52 : x
  2. Step 2: Convert to fraction form
    1,707.04/2,560.77 = 611.52/x
  3. Step 3: Cross multiply
    1,707.04x = 2,560.77 × 611.52
  4. Step 4: Simplify right side
    1,707.04x = 1,565,962.07
  5. Step 5: Solve for x
    x = 1,565,962.07/1,707.04
  6. Step 6: Final answer
    x = 917.36

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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.