Home / 1,989.74-2,746.04-1,150.18

Finding the Fourth Proportional to 1,989.74, 2,746.04 and 1,150.18

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Solution

The fourth proportional to 1,989.74, 2,746.04 and 1,150.18 is: 1,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.74 : 2,746.04 = 1,150.18 : x
  2. Step 2: Convert to fraction form
    1,989.74/2,746.04 = 1,150.18/x
  3. Step 3: Cross multiply
    1,989.74x = 2,746.04 × 1,150.18
  4. Step 4: Simplify right side
    1,989.74x = 3,158,420.81
  5. Step 5: Solve for x
    x = 3,158,420.81/1,989.74
  6. Step 6: Final answer
    x = 1,587.35

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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.