Home / 1,346.16-2,018.58-615.48

Finding the Fourth Proportional to 1,346.16, 2,018.58 and 615.48

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Solution

The fourth proportional to 1,346.16, 2,018.58 and 615.48 is: 922.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.16 : 2,018.58 = 615.48 : x
  2. Step 2: Convert to fraction form
    1,346.16/2,018.58 = 615.48/x
  3. Step 3: Cross multiply
    1,346.16x = 2,018.58 × 615.48
  4. Step 4: Simplify right side
    1,346.16x = 1,242,395.62
  5. Step 5: Solve for x
    x = 1,242,395.62/1,346.16
  6. Step 6: Final answer
    x = 922.92

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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.