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Finding the Fourth Proportional to 4,973.76, 6,863.40 and 2,877.48

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Solution

The fourth proportional to 4,973.76, 6,863.40 and 2,877.48 is: 3,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,973.76 : 6,863.40 = 2,877.48 : x
  2. Step 2: Convert to fraction form
    4,973.76/6,863.40 = 2,877.48/x
  3. Step 3: Cross multiply
    4,973.76x = 6,863.40 × 2,877.48
  4. Step 4: Simplify right side
    4,973.76x = 19,749,296.23
  5. Step 5: Solve for x
    x = 19,749,296.23/4,973.76
  6. Step 6: Final answer
    x = 3,970.70

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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.