Home / 1,437.49-2,157.20-615.95

Finding the Fourth Proportional to 1,437.49, 2,157.20 and 615.95

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Solution

The fourth proportional to 1,437.49, 2,157.20 and 615.95 is: 924.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.49 : 2,157.20 = 615.95 : x
  2. Step 2: Convert to fraction form
    1,437.49/2,157.20 = 615.95/x
  3. Step 3: Cross multiply
    1,437.49x = 2,157.20 × 615.95
  4. Step 4: Simplify right side
    1,437.49x = 1,328,727.34
  5. Step 5: Solve for x
    x = 1,328,727.34/1,437.49
  6. Step 6: Final answer
    x = 924.34

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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.