Home / 5,388.07-8,082.18-1,690.22

Finding the Fourth Proportional to 5,388.07, 8,082.18 and 1,690.22

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Solution

The fourth proportional to 5,388.07, 8,082.18 and 1,690.22 is: 2,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.07 : 8,082.18 = 1,690.22 : x
  2. Step 2: Convert to fraction form
    5,388.07/8,082.18 = 1,690.22/x
  3. Step 3: Cross multiply
    5,388.07x = 8,082.18 × 1,690.22
  4. Step 4: Simplify right side
    5,388.07x = 13,660,637.02
  5. Step 5: Solve for x
    x = 13,660,637.02/5,388.07
  6. Step 6: Final answer
    x = 2,535.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.