Home / 2,387.02-3,298.36-1,867

Finding the Fourth Proportional to 2,387.02, 3,298.36 and 1,867

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Solution

The fourth proportional to 2,387.02, 3,298.36 and 1,867 is: 2,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.02 : 3,298.36 = 1,867 : x
  2. Step 2: Convert to fraction form
    2,387.02/3,298.36 = 1,867/x
  3. Step 3: Cross multiply
    2,387.02x = 3,298.36 × 1,867
  4. Step 4: Simplify right side
    2,387.02x = 6,158,038.12
  5. Step 5: Solve for x
    x = 6,158,038.12/2,387.02
  6. Step 6: Final answer
    x = 2,579.80

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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.