Home / 2,702.40-4,053.60-971.16

Finding the Fourth Proportional to 2,702.40, 4,053.60 and 971.16

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Solution

The fourth proportional to 2,702.40, 4,053.60 and 971.16 is: 1,456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.40 : 4,053.60 = 971.16 : x
  2. Step 2: Convert to fraction form
    2,702.40/4,053.60 = 971.16/x
  3. Step 3: Cross multiply
    2,702.40x = 4,053.60 × 971.16
  4. Step 4: Simplify right side
    2,702.40x = 3,936,694.18
  5. Step 5: Solve for x
    x = 3,936,694.18/2,702.40
  6. Step 6: Final answer
    x = 1,456.74

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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.