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Finding the Fourth Proportional to 835.95, 1,152.84 and 670.17

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Solution

The fourth proportional to 835.95, 1,152.84 and 670.17 is: 924.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.95 : 1,152.84 = 670.17 : x
  2. Step 2: Convert to fraction form
    835.95/1,152.84 = 670.17/x
  3. Step 3: Cross multiply
    835.95x = 1,152.84 × 670.17
  4. Step 4: Simplify right side
    835.95x = 772,598.78
  5. Step 5: Solve for x
    x = 772,598.78/835.95
  6. Step 6: Final answer
    x = 924.22

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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.