Home / 2,880.10-4,312.05-2,556.10

Finding the Fourth Proportional to 2,880.10, 4,312.05 and 2,556.10

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Solution

The fourth proportional to 2,880.10, 4,312.05 and 2,556.10 is: 3,826.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.10 : 4,312.05 = 2,556.10 : x
  2. Step 2: Convert to fraction form
    2,880.10/4,312.05 = 2,556.10/x
  3. Step 3: Cross multiply
    2,880.10x = 4,312.05 × 2,556.10
  4. Step 4: Simplify right side
    2,880.10x = 11,022,031.01
  5. Step 5: Solve for x
    x = 11,022,031.01/2,880.10
  6. Step 6: Final answer
    x = 3,826.96

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1.5x scale

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.