Home / 1,701.20-2,552.90-921.74

Finding the Fourth Proportional to 1,701.20, 2,552.90 and 921.74

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Solution

The fourth proportional to 1,701.20, 2,552.90 and 921.74 is: 1,383.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,701.20 : 2,552.90 = 921.74 : x
  2. Step 2: Convert to fraction form
    1,701.20/2,552.90 = 921.74/x
  3. Step 3: Cross multiply
    1,701.20x = 2,552.90 × 921.74
  4. Step 4: Simplify right side
    1,701.20x = 2,353,111.82
  5. Step 5: Solve for x
    x = 2,353,111.82/1,701.20
  6. Step 6: Final answer
    x = 1,383.21

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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.