Home / 1,914.02-2,870.92-615.39

Finding the Fourth Proportional to 1,914.02, 2,870.92 and 615.39

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Solution

The fourth proportional to 1,914.02, 2,870.92 and 615.39 is: 923.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.02 : 2,870.92 = 615.39 : x
  2. Step 2: Convert to fraction form
    1,914.02/2,870.92 = 615.39/x
  3. Step 3: Cross multiply
    1,914.02x = 2,870.92 × 615.39
  4. Step 4: Simplify right side
    1,914.02x = 1,766,735.46
  5. Step 5: Solve for x
    x = 1,766,735.46/1,914.02
  6. Step 6: Final answer
    x = 923.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.