Home / 5,428.59-7,491.60-3,038.49

Finding the Fourth Proportional to 5,428.59, 7,491.60 and 3,038.49

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Solution

The fourth proportional to 5,428.59, 7,491.60 and 3,038.49 is: 4,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.59 : 7,491.60 = 3,038.49 : x
  2. Step 2: Convert to fraction form
    5,428.59/7,491.60 = 3,038.49/x
  3. Step 3: Cross multiply
    5,428.59x = 7,491.60 × 3,038.49
  4. Step 4: Simplify right side
    5,428.59x = 22,763,151.68
  5. Step 5: Solve for x
    x = 22,763,151.68/5,428.59
  6. Step 6: Final answer
    x = 4,193.20

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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.