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Finding the Fourth Proportional to 926.02, 1,277.13 and 779.01

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Solution

The fourth proportional to 926.02, 1,277.13 and 779.01 is: 1,074.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.02 : 1,277.13 = 779.01 : x
  2. Step 2: Convert to fraction form
    926.02/1,277.13 = 779.01/x
  3. Step 3: Cross multiply
    926.02x = 1,277.13 × 779.01
  4. Step 4: Simplify right side
    926.02x = 994,897.04
  5. Step 5: Solve for x
    x = 994,897.04/926.02
  6. Step 6: Final answer
    x = 1,074.38

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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.