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Finding the Fourth Proportional to 897.21, 1,237.77 and 701.19

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Solution

The fourth proportional to 897.21, 1,237.77 and 701.19 is: 967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    897.21 : 1,237.77 = 701.19 : x
  2. Step 2: Convert to fraction form
    897.21/1,237.77 = 701.19/x
  3. Step 3: Cross multiply
    897.21x = 1,237.77 × 701.19
  4. Step 4: Simplify right side
    897.21x = 867,911.95
  5. Step 5: Solve for x
    x = 867,911.95/897.21
  6. Step 6: Final answer
    x = 967.35

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Double scale
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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.