Home / 1,341.34-1,851.13-1,009.17

Finding the Fourth Proportional to 1,341.34, 1,851.13 and 1,009.17

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Solution

The fourth proportional to 1,341.34, 1,851.13 and 1,009.17 is: 1,392.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.34 : 1,851.13 = 1,009.17 : x
  2. Step 2: Convert to fraction form
    1,341.34/1,851.13 = 1,009.17/x
  3. Step 3: Cross multiply
    1,341.34x = 1,851.13 × 1,009.17
  4. Step 4: Simplify right side
    1,341.34x = 1,868,106.97
  5. Step 5: Solve for x
    x = 1,868,106.97/1,341.34
  6. Step 6: Final answer
    x = 1,392.72

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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.