Home / 1,856.13-2,784.33-557.70

Finding the Fourth Proportional to 1,856.13, 2,784.33 and 557.70

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Solution

The fourth proportional to 1,856.13, 2,784.33 and 557.70 is: 836.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.13 : 2,784.33 = 557.70 : x
  2. Step 2: Convert to fraction form
    1,856.13/2,784.33 = 557.70/x
  3. Step 3: Cross multiply
    1,856.13x = 2,784.33 × 557.70
  4. Step 4: Simplify right side
    1,856.13x = 1,552,820.84
  5. Step 5: Solve for x
    x = 1,552,820.84/1,856.13
  6. Step 6: Final answer
    x = 836.59

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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.