Home / 2,221.02-3,064.05-1,276.59

Finding the Fourth Proportional to 2,221.02, 3,064.05 and 1,276.59

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Solution

The fourth proportional to 2,221.02, 3,064.05 and 1,276.59 is: 1,761.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.02 : 3,064.05 = 1,276.59 : x
  2. Step 2: Convert to fraction form
    2,221.02/3,064.05 = 1,276.59/x
  3. Step 3: Cross multiply
    2,221.02x = 3,064.05 × 1,276.59
  4. Step 4: Simplify right side
    2,221.02x = 3,911,547.08
  5. Step 5: Solve for x
    x = 3,911,547.08/2,221.02
  6. Step 6: Final answer
    x = 1,761.15

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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.