Home / 1,447.16-2,170.28-522.59

Finding the Fourth Proportional to 1,447.16, 2,170.28 and 522.59

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Solution

The fourth proportional to 1,447.16, 2,170.28 and 522.59 is: 783.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.16 : 2,170.28 = 522.59 : x
  2. Step 2: Convert to fraction form
    1,447.16/2,170.28 = 522.59/x
  3. Step 3: Cross multiply
    1,447.16x = 2,170.28 × 522.59
  4. Step 4: Simplify right side
    1,447.16x = 1,134,166.63
  5. Step 5: Solve for x
    x = 1,134,166.63/1,447.16
  6. Step 6: Final answer
    x = 783.72

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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.