Home / 1,845.21-2,545.70-1,136.91

Finding the Fourth Proportional to 1,845.21, 2,545.70 and 1,136.91

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Solution

The fourth proportional to 1,845.21, 2,545.70 and 1,136.91 is: 1,568.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.21 : 2,545.70 = 1,136.91 : x
  2. Step 2: Convert to fraction form
    1,845.21/2,545.70 = 1,136.91/x
  3. Step 3: Cross multiply
    1,845.21x = 2,545.70 × 1,136.91
  4. Step 4: Simplify right side
    1,845.21x = 2,894,226.10
  5. Step 5: Solve for x
    x = 2,894,226.10/1,845.21
  6. Step 6: Final answer
    x = 1,568.51

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Half scale
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Double scale
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1.5x scale

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.