Home / 3,291.76-4,543.02-2,175.02

Finding the Fourth Proportional to 3,291.76, 4,543.02 and 2,175.02

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Solution

The fourth proportional to 3,291.76, 4,543.02 and 2,175.02 is: 3,001.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.76 : 4,543.02 = 2,175.02 : x
  2. Step 2: Convert to fraction form
    3,291.76/4,543.02 = 2,175.02/x
  3. Step 3: Cross multiply
    3,291.76x = 4,543.02 × 2,175.02
  4. Step 4: Simplify right side
    3,291.76x = 9,881,159.36
  5. Step 5: Solve for x
    x = 9,881,159.36/3,291.76
  6. Step 6: Final answer
    x = 3,001.79

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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.