Home / 1,655.54-2,287.41-1,379.06

Finding the Fourth Proportional to 1,655.54, 2,287.41 and 1,379.06

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Solution

The fourth proportional to 1,655.54, 2,287.41 and 1,379.06 is: 1,905.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.54 : 2,287.41 = 1,379.06 : x
  2. Step 2: Convert to fraction form
    1,655.54/2,287.41 = 1,379.06/x
  3. Step 3: Cross multiply
    1,655.54x = 2,287.41 × 1,379.06
  4. Step 4: Simplify right side
    1,655.54x = 3,154,475.63
  5. Step 5: Solve for x
    x = 3,154,475.63/1,655.54
  6. Step 6: Final answer
    x = 1,905.41

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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.