Home / 1,856.32-2,784.59-557.75

Finding the Fourth Proportional to 1,856.32, 2,784.59 and 557.75

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Solution

The fourth proportional to 1,856.32, 2,784.59 and 557.75 is: 836.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.32 : 2,784.59 = 557.75 : x
  2. Step 2: Convert to fraction form
    1,856.32/2,784.59 = 557.75/x
  3. Step 3: Cross multiply
    1,856.32x = 2,784.59 × 557.75
  4. Step 4: Simplify right side
    1,856.32x = 1,553,102.28
  5. Step 5: Solve for x
    x = 1,553,102.28/1,856.32
  6. Step 6: Final answer
    x = 836.66

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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.