Home / 1,125.57-1,561.23-1,095.60

Finding the Fourth Proportional to 1,125.57, 1,561.23 and 1,095.60

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Solution

The fourth proportional to 1,125.57, 1,561.23 and 1,095.60 is: 1,519.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.57 : 1,561.23 = 1,095.60 : x
  2. Step 2: Convert to fraction form
    1,125.57/1,561.23 = 1,095.60/x
  3. Step 3: Cross multiply
    1,125.57x = 1,561.23 × 1,095.60
  4. Step 4: Simplify right side
    1,125.57x = 1,710,483.59
  5. Step 5: Solve for x
    x = 1,710,483.59/1,125.57
  6. Step 6: Final answer
    x = 1,519.66

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.