Home / 5,130.55-7,085.24-3,541.31

Finding the Fourth Proportional to 5,130.55, 7,085.24 and 3,541.31

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Solution

The fourth proportional to 5,130.55, 7,085.24 and 3,541.31 is: 4,890.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.55 : 7,085.24 = 3,541.31 : x
  2. Step 2: Convert to fraction form
    5,130.55/7,085.24 = 3,541.31/x
  3. Step 3: Cross multiply
    5,130.55x = 7,085.24 × 3,541.31
  4. Step 4: Simplify right side
    5,130.55x = 25,091,031.26
  5. Step 5: Solve for x
    x = 25,091,031.26/5,130.55
  6. Step 6: Final answer
    x = 4,890.51

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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.