Home / 1,045.50-1,560.12-936.18

Finding the Fourth Proportional to 1,045.50, 1,560.12 and 936.18

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Solution

The fourth proportional to 1,045.50, 1,560.12 and 936.18 is: 1,396.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.50 : 1,560.12 = 936.18 : x
  2. Step 2: Convert to fraction form
    1,045.50/1,560.12 = 936.18/x
  3. Step 3: Cross multiply
    1,045.50x = 1,560.12 × 936.18
  4. Step 4: Simplify right side
    1,045.50x = 1,460,553.14
  5. Step 5: Solve for x
    x = 1,460,553.14/1,045.50
  6. Step 6: Final answer
    x = 1,396.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.