Home / 1,345.22-1,858.97-1,013.06

Finding the Fourth Proportional to 1,345.22, 1,858.97 and 1,013.06

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Solution

The fourth proportional to 1,345.22, 1,858.97 and 1,013.06 is: 1,399.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.22 : 1,858.97 = 1,013.06 : x
  2. Step 2: Convert to fraction form
    1,345.22/1,858.97 = 1,013.06/x
  3. Step 3: Cross multiply
    1,345.22x = 1,858.97 × 1,013.06
  4. Step 4: Simplify right side
    1,345.22x = 1,883,247.73
  5. Step 5: Solve for x
    x = 1,883,247.73/1,345.22
  6. Step 6: Final answer
    x = 1,399.96

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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.