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Finding the Fourth Proportional to 927.06, 1,277.70 and 741.20

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Solution

The fourth proportional to 927.06, 1,277.70 and 741.20 is: 1,021.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    927.06 : 1,277.70 = 741.20 : x
  2. Step 2: Convert to fraction form
    927.06/1,277.70 = 741.20/x
  3. Step 3: Cross multiply
    927.06x = 1,277.70 × 741.20
  4. Step 4: Simplify right side
    927.06x = 947,031.24
  5. Step 5: Solve for x
    x = 947,031.24/927.06
  6. Step 6: Final answer
    x = 1,021.54

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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.