Home / 1,246.02-1,867.66-515.40

Finding the Fourth Proportional to 1,246.02, 1,867.66 and 515.40

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Solution

The fourth proportional to 1,246.02, 1,867.66 and 515.40 is: 772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.02 : 1,867.66 = 515.40 : x
  2. Step 2: Convert to fraction form
    1,246.02/1,867.66 = 515.40/x
  3. Step 3: Cross multiply
    1,246.02x = 1,867.66 × 515.40
  4. Step 4: Simplify right side
    1,246.02x = 962,591.96
  5. Step 5: Solve for x
    x = 962,591.96/1,246.02
  6. Step 6: Final answer
    x = 772.53

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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.