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Finding the Fourth Proportional to 2,880.68, 4,300.13 and 2,677.80

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Solution

The fourth proportional to 2,880.68, 4,300.13 and 2,677.80 is: 3,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.68 : 4,300.13 = 2,677.80 : x
  2. Step 2: Convert to fraction form
    2,880.68/4,300.13 = 2,677.80/x
  3. Step 3: Cross multiply
    2,880.68x = 4,300.13 × 2,677.80
  4. Step 4: Simplify right side
    2,880.68x = 11,514,888.11
  5. Step 5: Solve for x
    x = 11,514,888.11/2,880.68
  6. Step 6: Final answer
    x = 3,997.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.