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Finding the Fourth Proportional to 1,250.04, 1,726.74 and 856.38

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Solution

The fourth proportional to 1,250.04, 1,726.74 and 856.38 is: 1,182.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.04 : 1,726.74 = 856.38 : x
  2. Step 2: Convert to fraction form
    1,250.04/1,726.74 = 856.38/x
  3. Step 3: Cross multiply
    1,250.04x = 1,726.74 × 856.38
  4. Step 4: Simplify right side
    1,250.04x = 1,478,745.60
  5. Step 5: Solve for x
    x = 1,478,745.60/1,250.04
  6. Step 6: Final answer
    x = 1,182.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.