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Finding the Fourth Proportional to 886.92, 1,222.92 and 607.32

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Solution

The fourth proportional to 886.92, 1,222.92 and 607.32 is: 837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    886.92 : 1,222.92 = 607.32 : x
  2. Step 2: Convert to fraction form
    886.92/1,222.92 = 607.32/x
  3. Step 3: Cross multiply
    886.92x = 1,222.92 × 607.32
  4. Step 4: Simplify right side
    886.92x = 742,703.77
  5. Step 5: Solve for x
    x = 742,703.77/886.92
  6. Step 6: Final answer
    x = 837.40

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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.