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Finding the Fourth Proportional to 910.94, 1,367.10 and 705.02

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Solution

The fourth proportional to 910.94, 1,367.10 and 705.02 is: 1,058.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    910.94 : 1,367.10 = 705.02 : x
  2. Step 2: Convert to fraction form
    910.94/1,367.10 = 705.02/x
  3. Step 3: Cross multiply
    910.94x = 1,367.10 × 705.02
  4. Step 4: Simplify right side
    910.94x = 963,826.01
  5. Step 5: Solve for x
    x = 963,826.01/910.94
  6. Step 6: Final answer
    x = 1,058.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.