Home / 1,531.98-2,113.67-1,059.32

Finding the Fourth Proportional to 1,531.98, 2,113.67 and 1,059.32

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Solution

The fourth proportional to 1,531.98, 2,113.67 and 1,059.32 is: 1,461.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.98 : 2,113.67 = 1,059.32 : x
  2. Step 2: Convert to fraction form
    1,531.98/2,113.67 = 1,059.32/x
  3. Step 3: Cross multiply
    1,531.98x = 2,113.67 × 1,059.32
  4. Step 4: Simplify right side
    1,531.98x = 2,239,052.90
  5. Step 5: Solve for x
    x = 2,239,052.90/1,531.98
  6. Step 6: Final answer
    x = 1,461.54

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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.