Home / 2,988.02-4,123.43-1,661.71

Finding the Fourth Proportional to 2,988.02, 4,123.43 and 1,661.71

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Solution

The fourth proportional to 2,988.02, 4,123.43 and 1,661.71 is: 2,293.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.02 : 4,123.43 = 1,661.71 : x
  2. Step 2: Convert to fraction form
    2,988.02/4,123.43 = 1,661.71/x
  3. Step 3: Cross multiply
    2,988.02x = 4,123.43 × 1,661.71
  4. Step 4: Simplify right side
    2,988.02x = 6,851,924.25
  5. Step 5: Solve for x
    x = 6,851,924.25/2,988.02
  6. Step 6: Final answer
    x = 2,293.14

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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.