Home / 1,607.20-2,215.11-1,325.77

Finding the Fourth Proportional to 1,607.20, 2,215.11 and 1,325.77

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Solution

The fourth proportional to 1,607.20, 2,215.11 and 1,325.77 is: 1,827.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.20 : 2,215.11 = 1,325.77 : x
  2. Step 2: Convert to fraction form
    1,607.20/2,215.11 = 1,325.77/x
  3. Step 3: Cross multiply
    1,607.20x = 2,215.11 × 1,325.77
  4. Step 4: Simplify right side
    1,607.20x = 2,936,726.38
  5. Step 5: Solve for x
    x = 2,936,726.38/1,607.20
  6. Step 6: Final answer
    x = 1,827.23

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Half scale
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Double scale
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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.