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Finding the Fourth Proportional to 926.96, 1,277.10 and 760.91

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Solution

The fourth proportional to 926.96, 1,277.10 and 760.91 is: 1,048.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.96 : 1,277.10 = 760.91 : x
  2. Step 2: Convert to fraction form
    926.96/1,277.10 = 760.91/x
  3. Step 3: Cross multiply
    926.96x = 1,277.10 × 760.91
  4. Step 4: Simplify right side
    926.96x = 971,751.78
  5. Step 5: Solve for x
    x = 971,751.78/926.96
  6. Step 6: Final answer
    x = 1,048.33

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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.