Home / 3,397.02-4,687.47-1,980.51

Finding the Fourth Proportional to 3,397.02, 4,687.47 and 1,980.51

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Solution

The fourth proportional to 3,397.02, 4,687.47 and 1,980.51 is: 2,732.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.02 : 4,687.47 = 1,980.51 : x
  2. Step 2: Convert to fraction form
    3,397.02/4,687.47 = 1,980.51/x
  3. Step 3: Cross multiply
    3,397.02x = 4,687.47 × 1,980.51
  4. Step 4: Simplify right side
    3,397.02x = 9,283,581.21
  5. Step 5: Solve for x
    x = 9,283,581.21/3,397.02
  6. Step 6: Final answer
    x = 2,732.86

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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.