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Finding the Fourth Proportional to 897.79, 1,347.29 and 890.95

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Solution

The fourth proportional to 897.79, 1,347.29 and 890.95 is: 1,337.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    897.79 : 1,347.29 = 890.95 : x
  2. Step 2: Convert to fraction form
    897.79/1,347.29 = 890.95/x
  3. Step 3: Cross multiply
    897.79x = 1,347.29 × 890.95
  4. Step 4: Simplify right side
    897.79x = 1,200,356.83
  5. Step 5: Solve for x
    x = 1,200,356.83/897.79
  6. Step 6: Final answer
    x = 1,337.02

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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.