Home / 2,160.08-2,980.49-1,276.02

Finding the Fourth Proportional to 2,160.08, 2,980.49 and 1,276.02

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Solution

The fourth proportional to 2,160.08, 2,980.49 and 1,276.02 is: 1,760.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.08 : 2,980.49 = 1,276.02 : x
  2. Step 2: Convert to fraction form
    2,160.08/2,980.49 = 1,276.02/x
  3. Step 3: Cross multiply
    2,160.08x = 2,980.49 × 1,276.02
  4. Step 4: Simplify right side
    2,160.08x = 3,803,158.47
  5. Step 5: Solve for x
    x = 3,803,158.47/2,160.08
  6. Step 6: Final answer
    x = 1,760.66

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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.