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Finding the Fourth Proportional to 848.60, 1,172.04 and 676.07

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Solution

The fourth proportional to 848.60, 1,172.04 and 676.07 is: 933.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.60 : 1,172.04 = 676.07 : x
  2. Step 2: Convert to fraction form
    848.60/1,172.04 = 676.07/x
  3. Step 3: Cross multiply
    848.60x = 1,172.04 × 676.07
  4. Step 4: Simplify right side
    848.60x = 792,381.08
  5. Step 5: Solve for x
    x = 792,381.08/848.60
  6. Step 6: Final answer
    x = 933.75

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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.