Home / 1,572.80-2,164.48-1,532.12

Finding the Fourth Proportional to 1,572.80, 2,164.48 and 1,532.12

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Solution

The fourth proportional to 1,572.80, 2,164.48 and 1,532.12 is: 2,108.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.80 : 2,164.48 = 1,532.12 : x
  2. Step 2: Convert to fraction form
    1,572.80/2,164.48 = 1,532.12/x
  3. Step 3: Cross multiply
    1,572.80x = 2,164.48 × 1,532.12
  4. Step 4: Simplify right side
    1,572.80x = 3,316,228.44
  5. Step 5: Solve for x
    x = 3,316,228.44/1,572.80
  6. Step 6: Final answer
    x = 2,108.49

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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.