Home / 5,389.34-7,434.14-3,399.18

Finding the Fourth Proportional to 5,389.34, 7,434.14 and 3,399.18

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Solution

The fourth proportional to 5,389.34, 7,434.14 and 3,399.18 is: 4,688.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.34 : 7,434.14 = 3,399.18 : x
  2. Step 2: Convert to fraction form
    5,389.34/7,434.14 = 3,399.18/x
  3. Step 3: Cross multiply
    5,389.34x = 7,434.14 × 3,399.18
  4. Step 4: Simplify right side
    5,389.34x = 25,269,980.01
  5. Step 5: Solve for x
    x = 25,269,980.01/5,389.34
  6. Step 6: Final answer
    x = 4,688.88

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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.