Home / 5,428.65-7,491.47-3,038.70

Finding the Fourth Proportional to 5,428.65, 7,491.47 and 3,038.70

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Solution

The fourth proportional to 5,428.65, 7,491.47 and 3,038.70 is: 4,193.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.65 : 7,491.47 = 3,038.70 : x
  2. Step 2: Convert to fraction form
    5,428.65/7,491.47 = 3,038.70/x
  3. Step 3: Cross multiply
    5,428.65x = 7,491.47 × 3,038.70
  4. Step 4: Simplify right side
    5,428.65x = 22,764,329.89
  5. Step 5: Solve for x
    x = 22,764,329.89/5,428.65
  6. Step 6: Final answer
    x = 4,193.37

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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.