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Finding the Fourth Proportional to 682.04, 942.06 and 671.80

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Solution

The fourth proportional to 682.04, 942.06 and 671.80 is: 927.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.04 : 942.06 = 671.80 : x
  2. Step 2: Convert to fraction form
    682.04/942.06 = 671.80/x
  3. Step 3: Cross multiply
    682.04x = 942.06 × 671.80
  4. Step 4: Simplify right side
    682.04x = 632,875.91
  5. Step 5: Solve for x
    x = 632,875.91/682.04
  6. Step 6: Final answer
    x = 927.92

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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.