Home / 5,369.76-7,411.23-3,131.55

Finding the Fourth Proportional to 5,369.76, 7,411.23 and 3,131.55

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Solution

The fourth proportional to 5,369.76, 7,411.23 and 3,131.55 is: 4,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,369.76 : 7,411.23 = 3,131.55 : x
  2. Step 2: Convert to fraction form
    5,369.76/7,411.23 = 3,131.55/x
  3. Step 3: Cross multiply
    5,369.76x = 7,411.23 × 3,131.55
  4. Step 4: Simplify right side
    5,369.76x = 23,208,637.31
  5. Step 5: Solve for x
    x = 23,208,637.31/5,369.76
  6. Step 6: Final answer
    x = 4,322.10

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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.