Home / 1,113.48-1,669.10-527.44

Finding the Fourth Proportional to 1,113.48, 1,669.10 and 527.44

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Solution

The fourth proportional to 1,113.48, 1,669.10 and 527.44 is: 790.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.48 : 1,669.10 = 527.44 : x
  2. Step 2: Convert to fraction form
    1,113.48/1,669.10 = 527.44/x
  3. Step 3: Cross multiply
    1,113.48x = 1,669.10 × 527.44
  4. Step 4: Simplify right side
    1,113.48x = 880,350.10
  5. Step 5: Solve for x
    x = 880,350.10/1,113.48
  6. Step 6: Final answer
    x = 790.63

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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.