Home / 5,388.42-8,082.94-1,439.58

Finding the Fourth Proportional to 5,388.42, 8,082.94 and 1,439.58

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Solution

The fourth proportional to 5,388.42, 8,082.94 and 1,439.58 is: 2,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.42 : 8,082.94 = 1,439.58 : x
  2. Step 2: Convert to fraction form
    5,388.42/8,082.94 = 1,439.58/x
  3. Step 3: Cross multiply
    5,388.42x = 8,082.94 × 1,439.58
  4. Step 4: Simplify right side
    5,388.42x = 11,636,038.77
  5. Step 5: Solve for x
    x = 11,636,038.77/5,388.42
  6. Step 6: Final answer
    x = 2,159.45

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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.