Home / 5,428.48-7,491.84-3,070.72

Finding the Fourth Proportional to 5,428.48, 7,491.84 and 3,070.72

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Solution

The fourth proportional to 5,428.48, 7,491.84 and 3,070.72 is: 4,237.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.48 : 7,491.84 = 3,070.72 : x
  2. Step 2: Convert to fraction form
    5,428.48/7,491.84 = 3,070.72/x
  3. Step 3: Cross multiply
    5,428.48x = 7,491.84 × 3,070.72
  4. Step 4: Simplify right side
    5,428.48x = 23,005,342.92
  5. Step 5: Solve for x
    x = 23,005,342.92/5,428.48
  6. Step 6: Final answer
    x = 4,237.90

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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.