Home / 5,118.08-7,062.98-2,880.00

Finding the Fourth Proportional to 5,118.08, 7,062.98 and 2,880.00

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Solution

The fourth proportional to 5,118.08, 7,062.98 and 2,880.00 is: 3,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.08 : 7,062.98 = 2,880.00 : x
  2. Step 2: Convert to fraction form
    5,118.08/7,062.98 = 2,880.00/x
  3. Step 3: Cross multiply
    5,118.08x = 7,062.98 × 2,880.00
  4. Step 4: Simplify right side
    5,118.08x = 20,341,354.29
  5. Step 5: Solve for x
    x = 20,341,354.29/5,118.08
  6. Step 6: Final answer
    x = 3,974.41

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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.