Home / 1,531.04-2,108.43-1,437.21

Finding the Fourth Proportional to 1,531.04, 2,108.43 and 1,437.21

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Solution

The fourth proportional to 1,531.04, 2,108.43 and 1,437.21 is: 1,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.04 : 2,108.43 = 1,437.21 : x
  2. Step 2: Convert to fraction form
    1,531.04/2,108.43 = 1,437.21/x
  3. Step 3: Cross multiply
    1,531.04x = 2,108.43 × 1,437.21
  4. Step 4: Simplify right side
    1,531.04x = 3,030,256.68
  5. Step 5: Solve for x
    x = 3,030,256.68/1,531.04
  6. Step 6: Final answer
    x = 1,979.22

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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.