Home / 2,677.40-3,702.72-2,345.28

Finding the Fourth Proportional to 2,677.40, 3,702.72 and 2,345.28

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Solution

The fourth proportional to 2,677.40, 3,702.72 and 2,345.28 is: 3,243.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,677.40 : 3,702.72 = 2,345.28 : x
  2. Step 2: Convert to fraction form
    2,677.40/3,702.72 = 2,345.28/x
  3. Step 3: Cross multiply
    2,677.40x = 3,702.72 × 2,345.28
  4. Step 4: Simplify right side
    2,677.40x = 8,683,915.16
  5. Step 5: Solve for x
    x = 8,683,915.16/2,677.40
  6. Step 6: Final answer
    x = 3,243.41

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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.