Home / 1,095.53-1,521.99-1,085.40

Finding the Fourth Proportional to 1,095.53, 1,521.99 and 1,085.40

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Solution

The fourth proportional to 1,095.53, 1,521.99 and 1,085.40 is: 1,507.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.53 : 1,521.99 = 1,085.40 : x
  2. Step 2: Convert to fraction form
    1,095.53/1,521.99 = 1,085.40/x
  3. Step 3: Cross multiply
    1,095.53x = 1,521.99 × 1,085.40
  4. Step 4: Simplify right side
    1,095.53x = 1,651,967.95
  5. Step 5: Solve for x
    x = 1,651,967.95/1,095.53
  6. Step 6: Final answer
    x = 1,507.92

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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.