Home / 1,282.51-1,767.47-1,002.30

Finding the Fourth Proportional to 1,282.51, 1,767.47 and 1,002.30

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Solution

The fourth proportional to 1,282.51, 1,767.47 and 1,002.30 is: 1,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.51 : 1,767.47 = 1,002.30 : x
  2. Step 2: Convert to fraction form
    1,282.51/1,767.47 = 1,002.30/x
  3. Step 3: Cross multiply
    1,282.51x = 1,767.47 × 1,002.30
  4. Step 4: Simplify right side
    1,282.51x = 1,771,534.15
  5. Step 5: Solve for x
    x = 1,771,534.15/1,282.51
  6. Step 6: Final answer
    x = 1,381.30

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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.