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Finding the Fourth Proportional to 895.01, 1,343.38 and 845.70

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Solution

The fourth proportional to 895.01, 1,343.38 and 845.70 is: 1,269.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.01 : 1,343.38 = 845.70 : x
  2. Step 2: Convert to fraction form
    895.01/1,343.38 = 845.70/x
  3. Step 3: Cross multiply
    895.01x = 1,343.38 × 845.70
  4. Step 4: Simplify right side
    895.01x = 1,136,094.35
  5. Step 5: Solve for x
    x = 1,136,094.35/895.01
  6. Step 6: Final answer
    x = 1,269.37

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Double scale
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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.