Home / 1,349.52-1,837.44-1,345.20

Finding the Fourth Proportional to 1,349.52, 1,837.44 and 1,345.20

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Solution

The fourth proportional to 1,349.52, 1,837.44 and 1,345.20 is: 1,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.52 : 1,837.44 = 1,345.20 : x
  2. Step 2: Convert to fraction form
    1,349.52/1,837.44 = 1,345.20/x
  3. Step 3: Cross multiply
    1,349.52x = 1,837.44 × 1,345.20
  4. Step 4: Simplify right side
    1,349.52x = 2,471,724.29
  5. Step 5: Solve for x
    x = 2,471,724.29/1,349.52
  6. Step 6: Final answer
    x = 1,831.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.