Home / 1,133.14-1,555.16-1,102.38

Finding the Fourth Proportional to 1,133.14, 1,555.16 and 1,102.38

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Solution

The fourth proportional to 1,133.14, 1,555.16 and 1,102.38 is: 1,512.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.14 : 1,555.16 = 1,102.38 : x
  2. Step 2: Convert to fraction form
    1,133.14/1,555.16 = 1,102.38/x
  3. Step 3: Cross multiply
    1,133.14x = 1,555.16 × 1,102.38
  4. Step 4: Simplify right side
    1,133.14x = 1,714,386.81
  5. Step 5: Solve for x
    x = 1,714,386.81/1,133.14
  6. Step 6: Final answer
    x = 1,512.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.