Home / 1,948.16-2,688.53-1,202.15

Finding the Fourth Proportional to 1,948.16, 2,688.53 and 1,202.15

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Solution

The fourth proportional to 1,948.16, 2,688.53 and 1,202.15 is: 1,659.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.16 : 2,688.53 = 1,202.15 : x
  2. Step 2: Convert to fraction form
    1,948.16/2,688.53 = 1,202.15/x
  3. Step 3: Cross multiply
    1,948.16x = 2,688.53 × 1,202.15
  4. Step 4: Simplify right side
    1,948.16x = 3,232,017.05
  5. Step 5: Solve for x
    x = 3,232,017.05/1,948.16
  6. Step 6: Final answer
    x = 1,659.01

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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.