Home / 1,675.52-2,312.59-929.74

Finding the Fourth Proportional to 1,675.52, 2,312.59 and 929.74

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Solution

The fourth proportional to 1,675.52, 2,312.59 and 929.74 is: 1,283.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.52 : 2,312.59 = 929.74 : x
  2. Step 2: Convert to fraction form
    1,675.52/2,312.59 = 929.74/x
  3. Step 3: Cross multiply
    1,675.52x = 2,312.59 × 929.74
  4. Step 4: Simplify right side
    1,675.52x = 2,150,107.43
  5. Step 5: Solve for x
    x = 2,150,107.43/1,675.52
  6. Step 6: Final answer
    x = 1,283.25

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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.