Home / 5,389.58-7,436.51-3,151.02

Finding the Fourth Proportional to 5,389.58, 7,436.51 and 3,151.02

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Solution

The fourth proportional to 5,389.58, 7,436.51 and 3,151.02 is: 4,347.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.58 : 7,436.51 = 3,151.02 : x
  2. Step 2: Convert to fraction form
    5,389.58/7,436.51 = 3,151.02/x
  3. Step 3: Cross multiply
    5,389.58x = 7,436.51 × 3,151.02
  4. Step 4: Simplify right side
    5,389.58x = 23,432,575.99
  5. Step 5: Solve for x
    x = 23,432,575.99/5,389.58
  6. Step 6: Final answer
    x = 4,347.75

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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.