Home / 5,389.02-7,439.76-3,629.94

Finding the Fourth Proportional to 5,389.02, 7,439.76 and 3,629.94

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Solution

The fourth proportional to 5,389.02, 7,439.76 and 3,629.94 is: 5,011.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.02 : 7,439.76 = 3,629.94 : x
  2. Step 2: Convert to fraction form
    5,389.02/7,439.76 = 3,629.94/x
  3. Step 3: Cross multiply
    5,389.02x = 7,439.76 × 3,629.94
  4. Step 4: Simplify right side
    5,389.02x = 27,005,882.41
  5. Step 5: Solve for x
    x = 27,005,882.41/5,389.02
  6. Step 6: Final answer
    x = 5,011.28

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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.