Home / 3,154.51-4,726.56-1,918.18

Finding the Fourth Proportional to 3,154.51, 4,726.56 and 1,918.18

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Solution

The fourth proportional to 3,154.51, 4,726.56 and 1,918.18 is: 2,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.51 : 4,726.56 = 1,918.18 : x
  2. Step 2: Convert to fraction form
    3,154.51/4,726.56 = 1,918.18/x
  3. Step 3: Cross multiply
    3,154.51x = 4,726.56 × 1,918.18
  4. Step 4: Simplify right side
    3,154.51x = 9,066,392.86
  5. Step 5: Solve for x
    x = 9,066,392.86/3,154.51
  6. Step 6: Final answer
    x = 2,874.10

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1.5x scale

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.