Home / 1,856.07-2,784.60-557.57

Finding the Fourth Proportional to 1,856.07, 2,784.60 and 557.57

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Solution

The fourth proportional to 1,856.07, 2,784.60 and 557.57 is: 836.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.07 : 2,784.60 = 557.57 : x
  2. Step 2: Convert to fraction form
    1,856.07/2,784.60 = 557.57/x
  3. Step 3: Cross multiply
    1,856.07x = 2,784.60 × 557.57
  4. Step 4: Simplify right side
    1,856.07x = 1,552,595.50
  5. Step 5: Solve for x
    x = 1,552,595.50/1,856.07
  6. Step 6: Final answer
    x = 836.50

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1.5x scale

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.