Home / 1,686.47-2,326.65-1,023.08

Finding the Fourth Proportional to 1,686.47, 2,326.65 and 1,023.08

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Solution

The fourth proportional to 1,686.47, 2,326.65 and 1,023.08 is: 1,411.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.47 : 2,326.65 = 1,023.08 : x
  2. Step 2: Convert to fraction form
    1,686.47/2,326.65 = 1,023.08/x
  3. Step 3: Cross multiply
    1,686.47x = 2,326.65 × 1,023.08
  4. Step 4: Simplify right side
    1,686.47x = 2,380,349.08
  5. Step 5: Solve for x
    x = 2,380,349.08/1,686.47
  6. Step 6: Final answer
    x = 1,411.44

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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.