Home / 1,530.85-2,112.87-1,058.62

Finding the Fourth Proportional to 1,530.85, 2,112.87 and 1,058.62

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Solution

The fourth proportional to 1,530.85, 2,112.87 and 1,058.62 is: 1,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.85 : 2,112.87 = 1,058.62 : x
  2. Step 2: Convert to fraction form
    1,530.85/2,112.87 = 1,058.62/x
  3. Step 3: Cross multiply
    1,530.85x = 2,112.87 × 1,058.62
  4. Step 4: Simplify right side
    1,530.85x = 2,236,726.44
  5. Step 5: Solve for x
    x = 2,236,726.44/1,530.85
  6. Step 6: Final answer
    x = 1,461.10

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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.