Home / 5,140.36-7,090.23-3,123.26

Finding the Fourth Proportional to 5,140.36, 7,090.23 and 3,123.26

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Solution

The fourth proportional to 5,140.36, 7,090.23 and 3,123.26 is: 4,307.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.36 : 7,090.23 = 3,123.26 : x
  2. Step 2: Convert to fraction form
    5,140.36/7,090.23 = 3,123.26/x
  3. Step 3: Cross multiply
    5,140.36x = 7,090.23 × 3,123.26
  4. Step 4: Simplify right side
    5,140.36x = 22,144,634.60
  5. Step 5: Solve for x
    x = 22,144,634.60/5,140.36
  6. Step 6: Final answer
    x = 4,307.99

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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.