Home / 1,444.37-1,992.40-1,347.17

Finding the Fourth Proportional to 1,444.37, 1,992.40 and 1,347.17

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Solution

The fourth proportional to 1,444.37, 1,992.40 and 1,347.17 is: 1,858.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.37 : 1,992.40 = 1,347.17 : x
  2. Step 2: Convert to fraction form
    1,444.37/1,992.40 = 1,347.17/x
  3. Step 3: Cross multiply
    1,444.37x = 1,992.40 × 1,347.17
  4. Step 4: Simplify right side
    1,444.37x = 2,684,088.18
  5. Step 5: Solve for x
    x = 2,684,088.18/1,444.37
  6. Step 6: Final answer
    x = 1,858.32

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Half scale
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Double scale
Find fourth proportional to 1,445.37, 1,993.78 and 1,348.17
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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.