Home / 1,856.34-2,784.75-557.94

Finding the Fourth Proportional to 1,856.34, 2,784.75 and 557.94

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Solution

The fourth proportional to 1,856.34, 2,784.75 and 557.94 is: 836.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.34 : 2,784.75 = 557.94 : x
  2. Step 2: Convert to fraction form
    1,856.34/2,784.75 = 557.94/x
  3. Step 3: Cross multiply
    1,856.34x = 2,784.75 × 557.94
  4. Step 4: Simplify right side
    1,856.34x = 1,553,723.42
  5. Step 5: Solve for x
    x = 1,553,723.42/1,856.34
  6. Step 6: Final answer
    x = 836.98

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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.