Home / 5,428.73-7,491.80-3,070.82

Finding the Fourth Proportional to 5,428.73, 7,491.80 and 3,070.82

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Solution

The fourth proportional to 5,428.73, 7,491.80 and 3,070.82 is: 4,237.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.73 : 7,491.80 = 3,070.82 : x
  2. Step 2: Convert to fraction form
    5,428.73/7,491.80 = 3,070.82/x
  3. Step 3: Cross multiply
    5,428.73x = 7,491.80 × 3,070.82
  4. Step 4: Simplify right side
    5,428.73x = 23,005,916.46
  5. Step 5: Solve for x
    x = 23,005,916.46/5,428.73
  6. Step 6: Final answer
    x = 4,237.81

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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.