Home / 1,352.18-2,018.49-1,188.16

Finding the Fourth Proportional to 1,352.18, 2,018.49 and 1,188.16

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Solution

The fourth proportional to 1,352.18, 2,018.49 and 1,188.16 is: 1,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.18 : 2,018.49 = 1,188.16 : x
  2. Step 2: Convert to fraction form
    1,352.18/2,018.49 = 1,188.16/x
  3. Step 3: Cross multiply
    1,352.18x = 2,018.49 × 1,188.16
  4. Step 4: Simplify right side
    1,352.18x = 2,398,289.08
  5. Step 5: Solve for x
    x = 2,398,289.08/1,352.18
  6. Step 6: Final answer
    x = 1,773.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.