Home / 2,880.51-3,977.10-2,207.15

Finding the Fourth Proportional to 2,880.51, 3,977.10 and 2,207.15

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Solution

The fourth proportional to 2,880.51, 3,977.10 and 2,207.15 is: 3,047.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.51 : 3,977.10 = 2,207.15 : x
  2. Step 2: Convert to fraction form
    2,880.51/3,977.10 = 2,207.15/x
  3. Step 3: Cross multiply
    2,880.51x = 3,977.10 × 2,207.15
  4. Step 4: Simplify right side
    2,880.51x = 8,778,051.29
  5. Step 5: Solve for x
    x = 8,778,051.29/2,880.51
  6. Step 6: Final answer
    x = 3,047.39

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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.