Home / 5,395.17-7,445.40-3,158.37

Finding the Fourth Proportional to 5,395.17, 7,445.40 and 3,158.37

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Solution

The fourth proportional to 5,395.17, 7,445.40 and 3,158.37 is: 4,358.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,395.17 : 7,445.40 = 3,158.37 : x
  2. Step 2: Convert to fraction form
    5,395.17/7,445.40 = 3,158.37/x
  3. Step 3: Cross multiply
    5,395.17x = 7,445.40 × 3,158.37
  4. Step 4: Simplify right side
    5,395.17x = 23,515,328.00
  5. Step 5: Solve for x
    x = 23,515,328.00/5,395.17
  6. Step 6: Final answer
    x = 4,358.59

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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.