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Finding the Fourth Proportional to 847.51, 1,167.01 and 798.19

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Solution

The fourth proportional to 847.51, 1,167.01 and 798.19 is: 1,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    847.51 : 1,167.01 = 798.19 : x
  2. Step 2: Convert to fraction form
    847.51/1,167.01 = 798.19/x
  3. Step 3: Cross multiply
    847.51x = 1,167.01 × 798.19
  4. Step 4: Simplify right side
    847.51x = 931,495.71
  5. Step 5: Solve for x
    x = 931,495.71/847.51
  6. Step 6: Final answer
    x = 1,099.10

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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.