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Finding the Fourth Proportional to 1,344.42, 1,854.60 and 846.12

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Solution

The fourth proportional to 1,344.42, 1,854.60 and 846.12 is: 1,167.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.42 : 1,854.60 = 846.12 : x
  2. Step 2: Convert to fraction form
    1,344.42/1,854.60 = 846.12/x
  3. Step 3: Cross multiply
    1,344.42x = 1,854.60 × 846.12
  4. Step 4: Simplify right side
    1,344.42x = 1,569,214.15
  5. Step 5: Solve for x
    x = 1,569,214.15/1,344.42
  6. Step 6: Final answer
    x = 1,167.21

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Half 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.