Home / 1,506.20-2,078.51-1,008.77

Finding the Fourth Proportional to 1,506.20, 2,078.51 and 1,008.77

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Solution

The fourth proportional to 1,506.20, 2,078.51 and 1,008.77 is: 1,392.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506.20 : 2,078.51 = 1,008.77 : x
  2. Step 2: Convert to fraction form
    1,506.20/2,078.51 = 1,008.77/x
  3. Step 3: Cross multiply
    1,506.20x = 2,078.51 × 1,008.77
  4. Step 4: Simplify right side
    1,506.20x = 2,096,723.10
  5. Step 5: Solve for x
    x = 2,096,723.10/1,506.20
  6. Step 6: Final answer
    x = 1,392.07

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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.